Teenage spies investigate when Britain's famously peace-loving Prime Minister declares World War III and discover the PM has been replaced by a cyber-clone.

A secret plan threatens to plunge the world into a new ice age with a machine that can control the weather.

The teenage spies try to get to the bottom of who is responsible when a wave of power cuts sweep across the nation.

When an expert hacker takes control of Britain's space defences, leaving the country vulnerable to attack, Blane's special-forces soldier brother is in the firing line.

Blane's jealousy drives him to take a crazy risk when a charismatic teen CIA officer joins the spy team.

A mad inventor and his modified animals are determined to sniff out the school spies. Fenton sends in spy-animals to unearth the Grand Master's competition, but he assumes the teachers are the secret agents.