Season 4 features some of the highest-rated and most influential episodes in the entire series. Futurama Season 4 Ratings - IMDb
The episode "The Why of Fry" explains that Fry’s cryonic freezing was not an accident but a plan orchestrated by the Nibblonians to ensure he would be in the future to save the universe. Futurama - Season 4
While it is the fourth production season, Fox broadcast these episodes across its fourth and fifth seasons. Season 4 features some of the highest-rated and
In "Leela's Homeworld," it is revealed that Leela is not an alien but a mutant whose parents gave her up to the Surface World orphanage to provide her with a better life. Futurama - Season 4