The movie's story follows four high school students - Spencer (Alex Wolff), Bethany (Madison Iseman), Fridge (Ser'Darius Blain), and Martha (Morgan Turner) - who unleash the jungle world of Jumanji on their school. They are sucked into the game and become avatars, played by Dwayne Johnson (Dr. Smolder Bravestone), Jack Black (Professor Sheldon "Shelly" Oberon), Kevin Hart (Moose Finbar), and Karen Gillan (Ruby Roundhouse).