After a field trip to the desert, Lisa discovers that the desert water mysteriously makes typically combative creatures get along, so she brings some of the water home as a souvenir. When Grampa moves in with the family after getting kicked out of the retirement home, Homer secretly tests the desert water on Grampa, who is instantly cured of his crankiness. A pharmaceutical representative gets word of Homer's discovery and quickly tries to replicate the water into a drug, using Grampa as the primary guinea pig. But when the pills get in the wrong hands and are sold on the black market, unexpected side effects of the new drug take an eye-popping toll on the elderly citizens of Springfield, and the Simpsons learn that their new medical cure comes with major consequences. Written by
Did You Know?
When invited to be a voice for this episode, Werner Herzog
was unaware that 'The Simpsons' is a television show. "I was very surprised when they approached me because I thought The Simpsons was a newspaper cartoon. So when they called, I said, 'Do a voice? I don't understand, it's a TV program?' They thought I was joking," he continues, chuckling, "but I was not." See more
Principal Seymour Skinner
Move it along, Lisa. We have to go. Milhouse found a hippie skeleton and he's freaking out.
Milhouse Van Houten
Never get off the bus! Never get off the bus!
Spoofs Apocalypse Now
The Streets of Cairo, or the Poor Little Country Maid
Written by James Thornton
Performed by Dan Castellaneta See more