After Bill survives a roof cave-in over his bed he has a religious experience which involves a romantic liaison with Reverend Stroup.

Arlen is hit by a heat wave and Hank and the gang take the kids to the water park. Unfortunately, when they have to tangle with a group of surfer bullies, Boomhauer, who is usually cool, winds up embarrassing himself. Meanwhile, Bill becomes known as the famous "Heat-Waver" when he begins to stand on the side of the highway and wave to motorists.

Hank's agrees to speak at Enrique's daughter's quinceañera. However, some of Peggy's real-estate clients fall in love with the quaint Mexican neighborhood and start to move in.

Luanne's long-lost father and Peggy's brother Hoyt, a two-strike felon, comes to Arlen. After Hoyt gets caught committing another crime, Lucky feels bad and takes the blame, leaving Hoyt free to continue his life of crime.