The episode begins with either Roger or Stan releasing some kind of poisonous substance in the house. I can't remember who did it. The government comes and tells them they only have 24 hours to live. Right before they think they are about to die, Francine screams because she thinks Klaus died. He then opens his eyes and says, "I was just snoozing!" After 24 hours they are still alive and find out that the substance was harmless.