At the power plant,
Smithers accidentally leaves the door to the supply closet open.
Homer invites everyone to steal supplies. However, Homer sees
Mr. Burns approaching and hurries away, leaving his coworkers with the blame. Homer, thought to be the only one who did not steal anything, gets a day off, which he spends fishing with
Bart. That night, Homer
wets the bed while asleep. Thinking
karma is the reason, Homer apologizes to his coworkers with a free barbecue. Wetting the bed again, he buys a bedwetting alarm that will warn him when he is about to urinate. It wakes the family, and he explains his predicament.
Marge encounters
Professor Frink, who has invented a machine to enter people's dreams. They plug in Homer while he is asleep. The family enters his dream in which he is skiing. They see Death dragging a coffin. They fall off a cliff pursuing Death, and Frink warns that dying in the dream could kill them in real life. To prolong their time, they use the machine to enter Bart's dream where they are in their style from
The Tracey Ullman Show. Therapist B. F. Sherwood tells them to open the coffin, which starts filling the room with fish, so they enter
Lisa's dream. Finding themselves on an Elizabethan stage, they return to Homer's dream, which is a city made of his desires. The police enter the Simpsons' home to get the machine, ignoring Frink's warnings that this could kill the Simpsons. As they fight, the machine falls to the floor, causing a large bottle of
Duff Beer to fall in the dream and flood the city. The Simpsons are rescued by Death, who is actually
Mona. She shows them a childhood memory of Homer's. He and
Grampa went on a fishing trip but returned home without any fish. Several weeks later, Mona left, which left Homer thinking the failed fishing trip caused his mother to leave. Homer then believes that when he took Bart fishing at the start of the episode, it all came back and the guilt might have triggered his bedwetting problem. Mona reassures him with another memory of her being relieved that Homer was safe with Grampa, which comforts Homer. Knowing the reason behind Homer's bed-wetting, they awaken as
Chief Wiggum detaches the device. Homer is relieved he has not wet himself. Later, Homer spins a top. Marge says if it keeps spinning, they are still in a dream. It does, so they go for a naked bike ride. After they leave, the top falls on its side. Suddenly, it starts to hail, then Homer is hit by a truck, ending the episode. ==Production==