After an overdose at a health club makes the Planet Express staff get younger and younger, they have to find a mysterious Fountain of Aging. Meanwhile, Leela experiences the teenage life she never had with her parents.
Fry makes a deal with the Robot Devil so he can get robot hands to play the holophoner and impress Leela. In a twist of fate, Fry trades hands with the Robot Devil and writes a masterpiece opera about Leela. However, the Robot Devil has evil plans of his own.