AllMovie

After Stan's stepfather dies, he invites his mother (guest voice Swoosie Kurtz) to move in. Initially, Roger isn't pleased that he must share the attic with her, but he soon softens and the two roomies fall in love and get married, leaving Stan to deal with a new stepdad. Meanwhile, Steve and his friends stumble upon a plane-crash site while out biking and discover a long-lost "Fast and Furious"-type movie script that they're determined to make into a feature film.