When retirement is a subject bought up more often than not, the members of International Rescue decide it's time to hand the rains to the next generation, but they soon hit a slight snag, only three Tracy grandchildren exist, Kieron, Ella 'Dove' and Ivory 'Ivy'. Kieron is 18 and is the son of Scott and kayo, he enjoys flying his father's Thunderbird. Ella 'Dove' is 17 and is the daughter of Virgil, Dove doesn't know much of her mother as she died when Ella was 5, all Ella can remember is her mother's eye colour and name: silver, Dove. Ella is called Dove by all her family and friends because she wants to keep the memory of her mother alive best she can. Ivory 'Ivy' is the daughter of Lady Penelope and Gordon, being much younger at 14 she feels like an outcast at Tracy Island, so her, her mother and father moved away from there and back to Lady P's palace in London.
Eliza and Georgina are 15-year-old orphan twins, it's them and their older brother Jamie who is 15, they live with their aunt and her abusive boyfriend, only one person knows about what the twins and Jamie go through at home and that's Calum, their next-door neighbour.
Bready lives on the opposite side of the world to the twins Calum and Jamie. Bready is the national champion for kickboxing, he often gives younger sister Heather bits of advice and training out of hours.
Heather is the local kickboxing superstar and younger sister of Breadey, she often pesters him to the point when he has to knock her out to make her shut up!
But one chance encounter will change everything for ever...
Years ago before Jeff tracy my son dissapeared I had six grandchildren but when Jeff dissapeared that day so did their sister, who was the youngest of the bunch. She was a mix of all the boys. She was responsible like Scott, smart like John, patience like Virgil, humorous like Gordon, enthusiastic like Alan but most of all she was kind soul and a badass just like her father. The boys where to young to remember her and strangely all of the photos of her dissapeared when she suddenly dissapeared. With each day passing with no sign of them I'm starting to lose hope. Until one day a girl they rescued from an island appears and acts and looks just like her. Coincidence?