A top-secret government programme needs a crack team of undercover military operators. They must have awesome levels of determination, endurance and fitness. They must be able to think on their feet. The recruits undergo the most rigorous and testing selection process the modern military can devise. And in order to operate in circumstances where adult forces would be compromised, the recruits must be under 16. Only a few are tough enough and smart enough to make it.

In Paris, an elderly man is assassinated as he takes his morning walk. In the war-torn cities of Syria, government forces wage a bloody war against their own people. The Russians are propping up the government, the French are backing one rebel fraction and the British are backing another. And in north Africa, young SAS trooper Jamie Truman is coming to the end of a gruelling tour of duty, or so he thinks. Jamie has a new mission.

Ben Ripley may only be in middle school, but he's already pegged his dream job: CIA or bust. Unfortunately for him, his personality doesn't exactly scream "secret agent". In fact Ben is so awkward, he can barely get to school and back without a mishap. Because of his innate nerdiness, Ben is not surprised when he is recruited for a magnet school with a focus on science - but he's entirely shocked to discover that the school is actually a front for a junior CIA academy.

Jason Steed is looking for a place to call home. He finds what he's looking for in the Sea Cadets - an elite group of British youngsters being groomed for lifelong service in the military. But when a routine training exercise goes awry, Jason finds himself in the middle of a secret mission. The future of the world hangs in the balance...and Jason might be the only one who can save it.

A suspected IRA commander in Northern Ireland agrees with his wife to foster a child. Unbeknownst to them, that boy is 12-year-old British secret agent, Jason Steed. The weapons and arms trail lead Jason to Istanbul, Turkey, where he unearths the largest illegal weapon smuggling operation in the world. However, those involved in the lucrative business are determined to defend it at any cost.