Undercover NCIS - Allison Balkum - Wattpad

Undercover NCIS

Reads 37,548
Votes 547
Parts 19
Time 1h 41m

Reads 37,548
Votes 547
Parts 19
Time 1h 41m

dinozzo jethrogibbs leroyjethrogibbs timmcgee tonydinozzo zivadavid

When Mason Gibbs is finally able to get into the field they put her undercover to long. Mason is Gibbs' little sister. He got her a job at NCIS and never saw her again until dictator Vance sends the team to recover her after an explosion happened at the hotel she stayed at.


Mason Gibbs is the sister of Leroy Jethro Gibbs and has been working with NCIS undercover for more than four years. Jethro hasn't seen her in a while and when she comes back to him. He is the big brother he missed being. Even when Mason wasn't there for the death of his wife or daughter he still knew she was there. 

When she meets Tony DiNozzo she doesn't know what to think of him but she knows what a good guy he is and so she goes out with him.


Unedited and sorta completeAll Rights Reserved

dinozzo jethrogibbs leroyjethrogibbs timmcgee tonydinozzo zivadavid

Table of contents

19 parts

Sign up to add Undercover NCIS to your library and receive updates

or

Content Guidelines

You may also like

Hunting Season by F4llon

PART 1 - Leroy Jethro Gibbs and G. Callen have been friends for a long time. This delves into their friendship, how they met and how their close friendship came about. They are pulled together with both of their teams to take down enemies of Callen's and of his team, to protect the family of a dead Lieutenant Commander. Both of their teams, are shocked to discover their biggest secret. PART 2 - Set fifteen months on, the Walker family settle into their new life with their new identities. Gibbs discovers a stranger in town whose a threat to his family. As he tries to contact Callen, Sam and Callen go off grid. Sidorov has returned to Los Angeles, causing grief for all the team. PART 3 - Callen is recovering away from his family and team. Janvier remains on the loose as the team try to gain information to his where abouts. Things are changing in Half Moon Bay while Callen remains away. Will Callen be ready when Janvier comes? Will his team be able to find Janiver in time?

Remember (Book One of The Avengers Reports) by WritersBlock039

NCIS has been going on casually ever since the major events they've been through. However, NCIS Special Agent Natasha Romanoff has been seeing a familiar face wherever she goes, and she's worried about what will happen to her family and friends. The only people she confides in are Abigail Sciuto and Ducky Mallard. She doesn't trust Tony or Ziva or McGee or even Gibbs to keep her secret. The only thing that she is aware of is that she keeps remembering her past. Will she be able to recover, or will something happen that will cause a major gap in the team's lives? One word may haunt her the entire case . . . First in The Avengers Reports. *** Sadly, I don't own the Avengers. That goes to MARVEL. And I don't own NCIS either, that belongs to whoever made that show up. Wonderful cover is made by thekingd0m.

Redefining The Future by MindlessCreations15

When the Gibbs' family are forced to flee and go into hiding, past secrets are revealed making it necessary for them to confront old and new enemies. Gibbs will stop at nothing to protect those he loves even if it means making the ultimate sacrifice. Jibbs, team as family Sequel to Rekindling the Flame and Reversed Psychologies

The Life Of The Daughter Of NCIS by BanditoWarrior

{Published 21st of May '18} - #1 Rated in NCISFanFiction 19/7/18 - - #1 Rated in NCIS 9/7/18 - -Rated mature for occasional swearing and violence- Azalea Knight-Gibbs was adopted by Special Agent Leroy Jethro Gibbs when she was five years old after the sudden death of both her parents by the Reynosa Cartel. When the past comes back to haunt the team, the devil incarnate isn't too picky when it comes to punishment. This is an anniversary that no one wants to celebrate without a gun in their hand.

IT'S NOT ME: Sequel Of Undercover Slibbs by SnehalShukla

After one accident Gibbs started behaving strange and that was bothering his team especially Sloane. Otherside someone is out there planning to get revenge on Gibbs. He's planning something that nobody can ever imagine. He went after Gibbs and his team. Sloane and the team found some unbelievable things about Gibbs and then they start digging to find the truth. Who's that person, what team found and why Gibbs is behaving strangely?

NCIS: Boss's Daughter by PhoenixBunny456

A few months after Leroy and Shannon got married, they welcomed their first born, Roselyn 'Rose/Rosie' Gibbs. Less than a year later into Leroy and Shannon's marriage Rose became a big sister to Kelly. Rose and Kelly were Irish Twins but acted more like twin sisters than normal sisters. Eight years later, while angry with her father that he was deployed again missing both hers and Kelly's birthdays, Rose is visiting her paternal grandfather in Stillwater, and wakes up to a dream nightmare of her mother and sister's deaths. While Leroy is grateful he didn't lose Rose too, as an nearly nine year old girl, Rose blamed her father for not being there when her mother and sister needed him. She chose to be raised by her grandfather for the remainder of her time growing up. Graduating super early, Rose decided to follow her father's footsteps into law enforcement. She wound up at Navy Criminal Investigative Service after it changed over from NIS and as a joke, she wound up on her father's team. That was when their father-daughter duo began to solve every case presented to them. After a few years of working with her father, Rose meets Timothy McGee and becomes very tempted to break rule #12 - Never Date A Coworker. Boss's Daughter is the story of the breaking of that very rule - given permission by Gibbs of course. Gibbs wants nothing more than for his only remaining daughter to be happy and healthy. Even if that means breaking a few rules here and there. {All Rights Reserved - Roselyn Gibbs is a figment of my imagination made after several years of watching the show and disliking McGee with his wife MATURE FOR GIBBS OCCASIONAL CURSING)

Gibbs Sister|NCIS Fanfiction by HisKoala2003

Rosabeth Ella Gibbs-Jones is Leroy Jethro Gibbs younger half sister.Her dad is Jackson Gibbs and her mom is Sandra Jones.Her Mom gave Rosabeth the last name Gibbs-Jones.What happens when Rosabeth shows up at NCIS out of the blue?....Read to find out.

It Happened: NCIS by sameeehere

This is the final book in the What Really Happens: NCIS Series. Thank you all who kept up and dealt with me during these times. I appreciate you all. Melissa finally got her happy ending, just for it to be taken away from her in seconds. Little does she know, someone that gets close to her knows more than what meets the eye.

What Rule 12? by Hoodle2000

Eleanor "Ellie" Bishop works as an NCIS special agent and prior to that she worked at NSA, but she then got asked by Leroy Jethro Gibbs to join his team. Ellie has gone through a lot of stuff and most of it relates to relationships causing her to have walls up and her three big brothers being over protective. Nicholas "Nick" Torres works for NCIS as a special agent, but doing deep undercover ops. One of his ops does not go well and so he stops with the undercover work and joins Gibbs' team. Right away he takes a liking to Bishop, but he can't go for her because of her being in a relationship and Gibbs' rules. Well rule number 12 to be exact: Never date a co-worker. Will Ellie learn to love again after a divorce and a boyfriend being killed right in-front of her? Can Nick treat her like a true gentleman and break down those walls? What about Ellie's brothers? What about rule 12?

A Marine Turned Assassin {NCIS} by BanditoWarrior

-#1 NCIS Fan Fiction 21/6/18- The second instalment of Azalea's story. Now, the small 15 year old who snuck out at through her bedroom window was gone. In her place stood a warrior which held the title of United States Marine But like usual, nothing is as straight forward for Azalea. Though this time can she rely on her family to help or has her actions pushed them to far.

Alice Story part 2 by Doctor-and-Bad-Wolf

How does Alice continue without her sister? How will Gibbs help? How will Alice react to Ziva? Gibbs/OC Gibbs/OFC. All rights go to the creators of NCIS. I only own Alice and the story lines around her. Alice story 2 Any chapter with * had SMUT in it

NCIS Family by breukdog

This is a story where the NCIS team is a family. -completed-

Broken Rule (Leroy Jethro Gibbs x Reader) by BandGeek2263

Working with one Leroy Jethro Gibbs was a challenge to begin with. Being in love with him was near impossible. As a part of Gibbs' team, you knew the rules well. Especially his precious Rule 12; Never Date A Coworker. However, when a psychopath from your previous job at the FBI sets his sights on you again. When you get taken and Gibbs has to find you before you get killed, how does he react? When you are rescued moments before getting killed, how do you react? Finally, when you are healing and Gibbs shows you a side to him that you've never seen, how does your relationship change? Read to find out.

The unknown Gibbs daughter by ImpalaAllie

Growing up without a father was hard but having cancer was the worst part of Alexis' childhood. She's found the one man who she has spent her entire childhood dreaming about. The one man she wanted to look up to. Alexis graduated at age seventeen and is going to MIT once she graduated MIT she went straight to the marines just like her father. She wanted to go earlier but she got caught up in her MIT classes and visiting her father at NCIS. Alexis hasn't felt anything like the love she feels when she's around Special Agent Timothy McGee. The story doesn't follow the show but there are a few episodes I followed and they were kind of smushed together. I hope it doesn't bother you guys. Also sorry if the David and Ziva David is confusing. I DO NOT OWN THE CHARACTERS FROM THE TELEVISION SHOW NCIS. (Gibbs, McGee, DiNozzo, Todd, David, etc. but Alexis, Jeremy, Marie are mine.(not to sound possessive.)) Published 2017 Hope you guys enjoy the story.

I'm a DiNozzo by 37YearsLater

NCIS Agent Anthony DiNozzo has a secret. He hasn't told anyone. But he has a daughter. Not even his boss Leroy Jethro Gibbs knows. Tony's wife Hope, passed right after his daughter was born. No one knows about that either. Except for one... I do not own NCIS or it's characters, only my OC's, and no background of the show is needed to read

Resurrection: An NCIS Fanfiction [Book Two] by BOBBYBEGlNS

BOOK TWO OF LIFE LINE SERIES When two NCIS agents went missing, it turned out to be a bigger problem than they bargained for. One of the two is still in the hospital fighting for her life, and the other? He's never been more afraid in his whole life. Bumpy roads are ahead for NCIS' Major Case Response Team. With uncertainties ahead, will they prevail? Stakes will get high. Friendships will be tested. But family? Family is their life line. So come on! Join team Gibbs in Resurrection: An NCIS Fanfiction ***I do not own NCIS or its characters. All characters and storylines not from NCIS belong to me.***

Leroy's Girl (Complete) by The_Mind_of_Cici

In a world surrounded by sailors, marines, spies, cops and politicians Special Agent Gibbs had given up hope that he would ever have children of his own after losing his wife and daughter 23 years before. Gibbs has created a family with his team and treats them as his own children. When a case to protect Petty Officer 3rd Class LJ Donahue brings LJ and Gibbs face to face his whole world changes in an instant with a twenty-year secret coming to light. Team Gibbs is left reeling when they find out that the gorgeously mixed Petty Officer is actually Gibbs's illegitimate daughter. Can the two make up for lost time? Will the team be able to accept her into their family?

Deck the Halls - A Christmas Special by RinLey380

*SUICIDE, PTSD & ABUSE AWARNESS* Jacqueline Sloane and Jethro Gibbs have always had a connection. They've always clicked. They viewed the world very similarly and they were just so alike in many ways. Neither had ever admitted it but there was a spark between them. The spark lit the moment that they'd met. They didn't know then that they'd later fall in love with each other. Love wasn't the problem though. The problem was that they didn't know how to tell each other about their feelings. For Gibbs, it was every relationship he'd ever had. Everyone he'd ever gotten close to, had gotten hurt. Gibbs had one fear, he was scared of something happening to the people he cared most about in this world. For Jack, it was the moment that haunted her to this day. Her last relationship was abusive and she was raped, resulting in a baby that she had to put up for adoption, for a better life, when she was only eighteen. Even though it was so long ago, she was scared of this happening again. This relationship haunted her everyday. She had so many nightmares about it. These nightmares resulted in suicidal thoughts and self-harm. Because of this, Jack decides to step away from her job at NCIS. Will Gibbs tell Jack about his feelings before it's too late? What will happen between Jack and Gibbs? What will happen to their Christmas celebrations? And more importantly, will Jack be able to escape her past traumas and PTSD? Find out in this year's Christmas Special "Deck the Halls", coming out on December 14th!

Lydia DiNozzo- Reid by musicguirl

Anthony DiNozzo's sister works at the FBI in the Behavioural Analysis Unit. She is a natural in facial expression and she can also, tell when people lie. What happens when the DiNozzo's father in linked with a case that killed an FBI agent and a Navy officer?

Changes by fantastic_writer06

After Gibbs came back from Mexico the team broke into two. Tony, Abby, Jimmy, Ducky and Jenny one side. McGee, Ziva and Gibbs on the other side. Feeling like he wasn't appreciated enough with his team, Tony with the help of his childhood friend Spencer Reid went back to school. Finishing two years early read to find out what's going to happen to Tony Dinozzo after he finally leaves the place that was draining him dry. Will he finally confess what he feels to his ex-boss or will he let it eat him up inside? I do not own NCIS or Criminal minds

You may also like

Slide 1 of 20

Hunting Season cover

Remember (Book One of The Avengers Reports) cover

Redefining The Future cover

The Life Of The Daughter Of NCIS cover

IT'S NOT ME: Sequel Of Undercover Slibbs cover

NCIS: Boss's Daughter cover

Gibbs Sister|NCIS Fanfiction cover

It Happened: NCIS cover

What Rule 12? cover

A Marine Turned Assassin {NCIS} cover

Alice Story part 2 cover

NCIS Family cover

Broken Rule (Leroy Jethro Gibbs x Reader) cover

The unknown Gibbs daughter cover

I'm a DiNozzo cover

Resurrection: An NCIS Fanfiction [Book Two] cover

Leroy's Girl (Complete) cover

Deck the Halls - A Christmas Special cover

Lydia DiNozzo- Reid cover

Hunting Season

PART 1 - Leroy Jethro Gibbs and G. Callen have been friends for a long time. This delves into their friendship, how they met and how their close friendship came about. They are pulled together with both of their teams to take down enemies of Callen's and of his team, to protect the family of a dead Lieutenant Commander. Both of their teams, are shocked to discover their biggest secret. PART 2 - Set fifteen months on, the Walker family settle into their new life with their new identities. Gibbs discovers a stranger in town whose a threat to his family. As he tries to contact Callen, Sam and Callen go off grid. Sidorov has returned to Los Angeles, causing grief for all the team. PART 3 - Callen is recovering away from his family and team. Janvier remains on the loose as the team try to gain information to his where abouts. Things are changing in Half Moon Bay while Callen remains away. Will Callen be ready when Janvier comes? Will his team be able to find Janiver in time?