

Jack finds himself dragged back into the Project, this time as an instructor. General Larraby, the military officer in charge of the Project, decides to form a new Zenith Team to fight him. Ed Grant, the scientist behind the original Zenith Project, discovers that Concussion is making his way back into their dimension. Robby Benson was believed to have been destroyed by Freddie Benson at the cost of his powers, but was sent into another dimension instead. Thinking Zoom and the team betrayed him, Robby Benson killed his teammates Brad, Raeven Chase and Wes. This made Zoom faster and stronger, but it also turned Concussion evil.

The American military sought to enhance the team's powers using an experimental form of radiation called "Gamma-13".

Decades prior to the start of the film, the Zenith team are five young superheroes who fought to protect the world from evil, led by Jack Shepard ("Captain Zoom") and his older brother, Connor Shepard ("Concussion").
