The plot chronicles the exploits of Michael, a teenager who is using marijuana and stealing his father's beer. His younger sister, Corey, is worried about him because he started acting differently. When her piggy bank goes missing, her cartoon tie-in toys come to life to help her find it. After discovering it in Michael's room along with his stash of drugs, the various cartoon characters proceed to work together and take him on a fantasy journey to teach him the risks and consequences a life of drug-use can bring and save the world.

A huge meteorite has plunged into the Great Valley, cutting off the water supply and causing tension among the once-peaceful dinosaurs. While the adults argue and turn against one another, Littlefoot and his friends venture out to find a new source of water, only to be constantly bullied by a trio of older dinosaurs. The journey becomes a fight for survival when the group is cornered by a pack of Velociraptors and trapped by a sudden wildfire.