"Preshistoric Ice Man"
Season 2, Episode 18

When the children find a man frozen in ice, they figure they've found a prehistoric ice man. But his Eddie Bauer clothes are a dead giveaway that he's only been frozen since 1996, hence his slight grunge look. Larry, the ice man's real name, realizes that the life he used to have is finished, and so he devises a plan with Kyle to start his life over in Des Moines, Iowa, where life is three years behind everything else.