Grizzy is pulled from his dreams by the noise made by the Lemmings, perched on sheep, and who oppose each other in jousting. The cunning bear gets rid of rodents by driving their mounts away with food. Angered, the Lemmings hatch a plan to keep the bear away from the castle during his nap and keep him from coming back. Furious at being thus banished, the bear, armed with a catapult, prepares to retaliate...