Felix becomes popular when it appears he won a fight with a school bully. Jake and Hayley attempt to track and capture a Blood Thrasher, a mysterious creature that is killing other monsters in the area.
Felix has been promoted to International HQ and Kirby Bancroft-Cadworth III (Matt Shively) has replaced him. Now the new Troop must figure out how monsters are using a popular video game to eat people.
When students start mysteriously disappearing, the Troop hunts down an elusive Reflecticor Luponis Monster. Comic book legend Lee Stanley comes to school to buy Jake's loosely autobiographical comic book.
Kirby's lifelong nemesis and ex Troop mate, Morgan Grey, uses her access to monsters in helping her finally defeat Kirby at the National Young Inventors Expo. When she loses control of her creation, it sets out to destroy her, the Troop & Lakewood High.
Jake, Hayley and Mr. Stockley get an emergency distress signal while doing Driver's Ed. Mazie, a straight-A overzealous student, faces off with Kirby in the school election for the newly created position of "Green Czar."