Middle-aged couples compete against couples in their twenties. Teams must try to pull their opponents off a building in a game of rooftop tug of war; the men must chew through intestines to rescue the women from a pit of roaches; and teams must a drive a car onto the trailer of a flatbed truck while the driver's hands are restrained and an opposing team throws obstacles at them from the top of the truck. A family is challenged to drink blended sour milk and stink beetles in this week's Home Invasion. (thetvdb.com)