Dee Dee hides the core of Dexter's nuclear lamp and he must decipher her clues to find it within one hour after which it would explode, destroying the Earth with it.

► Subscribe to the official Dexter's Laboratory YouTube channel: http://bit.ly/2z61jDy

Past the vaulted doors lives the smartest boy the world has ever seen, Dexter, boy genius! He's constantly creating dazzling, worldsaving 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.