Ace is asked to pilot a new superjet, the XM-2000, for an air show in Paris. No sooner do the Centurions arrive than Doc Terror and Hacker stage an attack. The cyborgs are defeated, and the Centurions free the officer in charge of the XM 2000 and his assistant. Ace offers to walk the young lady home, and during the walk she reveals herself as Amber and kidnaps Ace. When Ace awakens, he finds himself strapped to a mind exchange machine stolen by Doc Terror. Hacker is on the other side, and Terror flips the switch, imprisoning Ace's mind in Hacker's body. With Hacker's consciousness now in Ace's body, Terror can hijack the XM 2000. Ace has to somehow get free, stop Terror and get his mind back into his own body...without getting killed by his fellow Centurions.

Science Lesson: D.N.A. by Crystal.

The World President's yacht comes under attack from Doc Terror's Strafers. With Jake on vacation, Ace and Max alone drive off Terror's forces. Meanwhile, Jake discovers that all is not well in a small town, with its inhabitants seemingly acting like zombies. With the President's train passing though the area soon, the Centurions examine the place further. They find that the townspeople are under the control of Zombie Master, who is working for Terror. He intends to turn the World President into a zombie when his train passes through the town, controlling him. Of course, only the Centurions can stop him.

Science Lesson: Steam power by Jake.

Doc Terror switches a cyborg for the head of security, Captain Newman, at a secret installation, in order to steal the X-150, a smart missile that never loses track of a target. While transporting the missile, the Centurions come under attack, and Ace is knocked unconscious by a fall. Hacker plants a remote control circuit within his exoframe, so that Ace's movements in battle can be controlled by Doc Terror. Terror attacks again, and manages to steal the missile while Ace's weapons keep firing at Jake. The Centurions later try to get the missile back, but Ace's weapon systems keep firing at his team-mates. The remote control circuit is found, and together the Centurions attempt to destroy the missile as Doc Terror launches it towards Skyvault.

Science Lesson: Volcanoes by Max.