Days of Future Lost

Cast(in order of appearance): Calvin Jacobson, Hobbes Jacobson, Susie Derkins, Andy Adams, Socrates, Sherman, Various Future Counterparts, Simone, Camus

Plot
When the gang goes into space to fight an alien spaceship, they see someone they thought they would never see. They see themselves from 15 years in the future, but our heroes' future doesn't seem to be all that fun.

Transcript
Days of Future Lost Transcript

Trivia

 * Future Calvin says to regluar Calvin that in a couple of months an invasion is going to happen forshadowing the return of Rupert and Earl in the next episode, The Invasion.
 * This is the ninty-first episode of Calvin and Hobbes the Animated Cartoon Adventures.