Endgame

In flashback, Stretch Monster drains the brainwaves from a scientist. In the present, Stretch Monster back stabs the Flex Fighters. The team realize that they need to locate the Prolotite to stop him and figure out that Blindstrike's costume is full of Prolotite. After an exhausting battle, they manage to finally defeat and capture him. However, Stretch Monster arrives and kidnaps Blindstrike, forcing the Flex Fighters to chase down their nemesis.

Stretch et les Flex Fighters doivent retrouver un mystérieux produit chimique dangereux détenu par Blindstrike avant que Stretch Monster n'y parvienne.