The citizens of Acmetropolis are celebrating the Loonatics on the one-year anniversary of the meteor strike, when the sky is suddenly filled with pieces of rock falling from the stars. An investigation by Tech reveals that another meteor is headed straight for Acmetropolis, only this one is 500 times larger than the one that gave the Loonatics their powers one year prior. As the team prepares for the intercept mission, we see learn about each Loonatics' life and what they were doing before the meteor struck: Ace was martial arts stunt double, Lexi was a student at Acme University trying out for the cheerleading squad, Duck was a pool boy, Slam was a professional wrestler, Tech was a student at the Acme Tech Institute, and Rev was a delivery boy/inventor. When they fail to destroy the meteor, they land on it to plants charges and destroy it from the inside. Though successful, an unknown figure declares he will destroy Acmetropolis despite two failures of using meteors.