There’s no denying that Futurama has always been one of the smartest shows on TV, and the writers decided to take that to a whole new level in this past Thursday’s episode, titled “The Prisoner of Benda.”

In the episode, Professor Farnsworth unveils a new invention of his which allows anyone to switch mind and body with another. It begins with Amy and Farnsworth innocently swapping bodies for personal reasons, but they soon learn that they aren’t able to swap back. By the end of the episode, all the Planet Express crew, friends and acquaintances, and even robo-utensils have used the machine, and no one is in the correct body. To get everything back to normal calls for the assistance of the brilliant minds from the Globetrotter Homeworld and some crafty mathematical equations.

Click on over for more and to see a clip from the episode showing off some of the mind-switching madness now!