Honey, I Shrunk the Kids S01E13 - Honey, Meet the Barbarians

Wayne accidentally blows up the mayor's car in front of the mayor which upsets Diane, who wants to run for the school board, so he goes back in time to redo things. He accidentally goes back to the time of "the barbarians". When Wayne comes back he accidentally brings the "Barbarians" with him but when he tries to send them back the machine is broken. The barbarians become involved in the school board race when they are convinced that Diane's rival is an evil Norse god.