Spencer, Fridge, Bethany and Martha got detention for various reasons. When they got sended into the schools basement, Fridge finds Alex's discarded video game. Upon starting it, the group is sucked into Jumanji, landing in a jungle as their chosen avatars..

The first one who fell into the jungle was Spencer as Dr. Xander "Smolder" Bravestone, then Matha as Ruby Roundhouse, then Fridge as Franklin "Mouse" Finbar and last Bethany as Professor Sheldon, who fell from the sky right onto Fridge.