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.

Diane is very nervous about her case against a tough lawyer so Wayne invents a thinky ring to help her retrieve her thoughts better. Unfortunately, she becomes a brain sucking vampire. Wayne finds out and goes after her to lure her home. Nick manages to get the ring off but this turns him into a brain sucking vampire. Diane figures things out and plots to fight Nick and get the ring off before he takes over the world.

Wayne turns Amy's bicycle into a super speed mountain bike. Amy goes on a bike ride through the woods, crashes, twists her ankle and finds refuge in a cave. Amy meets Bigfoot and she names him George after Curious George. He saves her and takes Amy to her house. Now the family must get him back along with his wife, a Yeti.