The film opens during the first ice age where a caveman attempts to make fire with his girlfriend, however there is an earthquake that causes a cave-in that buries the two of them. This segues into a present-day Los Angeles earthquake that awakens average teenager Dave Morgan (Sean Astin) who, along with his best friend Stanley "Stoney" Brown (Pauly Shore) strive to attain popularity in high school but come off more as rejects and outcasts. Dave is in love with Robyn (Megan Ward) a sweet and attractive girl who has been his best friend since grade school, and until she reached "babehood" had been rejected by Dave on several occasions. Her boyfriend Matt (Michael DeLuise) is a dim witted jock and school bully who is constantly responsible for making both Dave and Stoney the objects of ridic