[EDITED DESCRIPTION] Danny was taken by the GIW a year after he got his powers and was held captive, and experimented on for 2 years before he managed to escape and fled to Gotham. Now he has been free for a few weeks and has been living on the streets while hiding from the GIW and a certain teenage team that has been sent to find the "weapon" that the GIW lost. How will this pan out, will Danny become a friend or will he always be seen as a threat to society? Sorry its my first story so its gonna suck and probably not make a lot of sense since I have no clue where I am going with this. Sorry if this story sucks and feedback is welcomed, swearing is not. If anyone somehow finds this ridiculous story thanks for reading. Note: Nobody knows Danny's secret identity and how he learns and gains powers will differ from the shows timeline and plot. The young justice team is just the original team with robin, kid flash, aqualad, superboy, miss martian, and artemis Also I will not go off of a specific plot or reasoning from either show this plot will belong to me and if you try to make it fit somewhere into either series timeline(s) it won't make any sort of sense (partially because its been a while since I've watched them and a lot is based off vague memory and other fanfictions). Also disclaimer (I think that's the right word idk) I do not own Danny Phantom or Young Justice all rights go to the original creators I just own the plot.

When Danny is captured by the GIW and his alter ego is revealed, the GIW discover that the reason Danny survived the portal accident and became a half ghost (instead of outright dying) was because of an anomaly in his DNA. When they attempt to replicate the accident on the other Fentons, it's revealed that Danny and his family aren't blood related. The GIW's new objective is to find Danny's remaining biological family. It's a good thing Danny's biological brother isn't just any ordinary kid. (Disclaimer - Includes graphic depictions of violence and major character death)

Daniel and Richard Grayson were separated after their parents' death. During that time Danny was taken away from his adopted family and was tortured for two years. That is until Batman and Robin find him from the clutches of the GIW. Follow Danny and Dick on their adventures with the Young Justice and their bonding over their lost time!

"I wanted to see how the world envolved. I didn't want to cause trouble." ___ AU of the Danny Phantom Universe in the DCU Not much was known about Halfas, particularly their lifespan. They took too long to realize this, but by then, it was too late. Danny is lost, and Gotham has a knack for taking in strays. Or Danny becomes a ghostwriter of Amity Ghosts. A book series in Gotham that was gaining traction very quickly. ___ DANNY PHANTOM X BAT FAMILY CROSSOVER!

Bruce Wayne is missing, and Wayne Manor is empty. It's the perfect place for a tired young ghost to settle down and earn the qualifications for his haunting permit. Unfortunately, he didn't account for the groundskeeper, and now he has to spend ten years learning the ins and outs of haunting. All while coexisting with a kind old butler named Alfred Pennyworth. Characters belong to Detective Comics and Butch Hartman.

Batman and Robin find Harley breaking into an adoption agency. They find out she is looking for her son. The problem is the boy belongs to Joker too, to protect him from his biological father, Batman agrees to find the boy for Harley. Danny's in for wild ride.

Dick never knew it, but his parents had another child, worried they couldn't support him they gave him up for adoption. At 20 years old Dick sees a pregnant woman struggle to stand and remembers his mom having the same problems. The search is on.