Season 4

Production Season 4 was the fourth and last season of the first run of Futurama. It consisted of 18 episodes, and ended with what became a 'series finale'. It should not be until 23 March, 2008, that a new episode of Futurama would air on television again.

Broadcast wise, production season 4 was both broadcast season 4 and 5. Fortunately, the last episode, "The Devil's Hands Are Idle Playthings" aired as the last episode of the first run for the first run of Futurama.

Plot development
This season continues on the relationship between Amy Wong and Kif Kroker, but also reveals the truth about Turanga Leela, that she is not an alien, but a mutant.

Production
The people at FOX Network told the writers and producers that this season might be the last thing they were ever going to do. But there was a 50-50 chance that the show might get picked up again. The writers, specifically Ken Keeler, wrote the season finale, which turned out later to be the series finale, as a closure episode, but without wrapping everything up.