Dexter_s Laboratory ｜ Sister in Mom_s Body ｜ Cartoon Network

When Dexter is asked to bring his mother to the school, he disguises Dee Dee as her so that she can take her place, but she, unfortunately, does not behave like their mother.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.