In this series, Alexander "Alex" Mann is an extreme sports athlete known as "Action Man" and is a member of Team Xtreme.

Danger and adrenaline trigger hidden mental powers called the "AMP (Advanced Macro Probability) Factor", a result of secret experiments by his former high school coach Simon Grey.

The culmination of the experiments was to mind transfer Dr. X into Brandon's body, becoming his younger self and nanotech cyborg, able to change his appearance and infect others.

Dr. X's nanotech trilobites appeared to gain collective intelligence and rebel against him, but this was actually Brandon Caine's uploaded mind punishing Dr. X.

After humiliating him further over the news by claiming he purposely tried to kill a number of athletes including Alex Mann, Templeton wants revenge on Nick.

Final appearance of: Alex Mann (Action Man), Grinder, Fidget, Ricky, Doctor X, Gangrene, Asazi, Tempest and Quake.

Hasbro Interactive published the Windows game Action Man: Raid on Island X in the United States as a tie-in to the TV series, despite having nothing to do with it.

In 2001, the show won a Golden Camera Award at the U.S. and International Film and Video Festival for 'Best Animation' in the episode "The Swarm: Part 2".