Grant and Claire recently passed, but as ghosts, they continue to live in their home. But new owners soon move into the house so Grant and Claire try to get rid of them by any means possible.
Claire and Grant are stuck with watching Derek when Grandpa decides to go out to a poker game.
Claire stumbles upon Grant's deep, dark secret: he was still married to his first wife when they got married.
Derek gets into a fight at school, leaving Grant and Claire to try to help cheer him up.
In order to get Grandpa out of the house for awhile, Mike decides that Grandpa should start dating again.