Watch Futurama Season 4 Episode 1 - Roswell That Ends Well

Episode: 4×01 (Season 4 Episode 01)
Name: Roswell That Ends Well
Originally Aired: Dec. 09, 2001

Plot: A supernova causes an accident which sends the crew back in time to 1947, where they land in Roswell, Area 51. Fry and Bender’s head have to go in for a rescue mission to free Dr Zoidberg and Bender’s body from an army base where Fry’s grandfather works.