Alex Mann, Action Man's civilian identity, is an extreme sports athlete of Team Xtreme, taking part in the Mastervision Network's Acceleration Games, a series of unconventional televised sporting activities all over the world. 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. With it, Alex is able to calculate all future possibilities, choosing the best course of action. Alex "Action" Mann, Desmond "Grinder" Sinclair, Agnes "Fidget" Wilson, and Ricky Singh-Baines must stop arch-enemy Doctor X, a brilliant geneticist and bio-engineer, who will stop at nothing to duplicate Alex's AMP Factor to rebuild Earth with the genetically enhanced neo-humanity.