Back To The Present Harvey Birdman, Attorney at Law : Season 2 Episode 6

The Jetsons enlist Harvey's help to sue us for screwing up the planet. Turns out there's a reason all the buildings in the Jetsons' world are on stilts: the ice caps melted and the earth is covered in water. Meanwhile, Phil is terrified - or is it excited - that the Jetsons are there to abduct and anally probe him.