Dexter_s Laboratory ｜ Deedee_s Lost Teddy Bear ｜ Cartoon Network

In a fit of rage, Dexter dumps Dee Dee's favorite teddy bear, Mr. Fuzzums, into the garbage. As a result, an upset Dee Dee begins to behave oddly, prompting Dexter to go to the garbage dump and get back Mr. Fuzzums. Past the vaulted doors lives the smartest boy the world has ever seen, Dexter, boy genius! He's constantly creating dazzling, world-saving inventions in his secret laboratory. His big sister Dee Dee frequently wrecks his experiments. However, he has bigger problems such as his nemesis, Mandark, his brilliant rival at Huber Elementary School. Mom and Dad, of course, have no idea what their little angel is up to.