The British underworld is controlled by gangs. When two of them start a turf war, violence explodes on to the streets. The police need information fast, and James Adams has the contacts to infiltrate the most dangerous gang of all. He works for Cherub. Cherubs are trained professionals, aged between ten and seventeen. They exist because criminals never suspect that kids are spying on them. For official purposes, these children do not exist.

When a new radical animal protection group argues that it is right to kill or threaten one human in order to save the lives of many animals, James and the other agents must try to stop the group from completing a violent mission.

"When CHERUB uncovers a link between eco-terrorist group Help Earth and a wealthy religious cult known as The Survivors, James is sent to their isolatated outback headquarters on an infiltration mission. It's a thousand kilometers to the closest town, and James is under massive pressure from the cult's brainwashing techniques. This time he's not just fighting terrorists ... he's fightingfor his own mind"--Jacket.

When James is given the mission of digging up leads on Leon, a small-time crook with big money, James unravels a larger plot than expected with the only person who might know the truth being a deceased eighteen-year-old boy.

After a tsunami causes massive devastation to a tropical island, its governor sends in the bulldozers to knock down villages, replacing them with luxury hotels. Guarding the governor's family isn't James Adams' idea of the perfect mission-- and then retired agent Kyle Blueman comes up with an unofficial and highly dangerous plan of his own. James must choose between loyalty to CHERUB, and loyalty to his friend.