15 C.E.D'oh

A sleepy Marge is too tired on Valentine's Day to have sex with an eager and well-prepared Homer, who dejectedly leaves the house. He sees a billboard for a school offering extension courses. He goes to the school and attempts to take a course on stripping for his wife, which Dr. Hibbert teaches, but is kicked out for hogging the stripping oil and (literally) slides into a class on Successmanship. The class teaches Homer how to succeed in the workplace.

It gives Homer inspiration, and he investigates problems at the power plant, so he develops solutions to the problem – all of which are rejected by Mr. Burns, without reading them. This angers Homer after overhearing Burns admit that the plant’s real owner is a canary named "Canary M. Burns" to protect Burns from responsibility for any wrongdoing by the power plant. Homer, with Bart’s help, devises a plan to overthrow Burns by releasing the bird from the plant to the Canary Islands.

After the bird is released, he tells Mr. Burns that inspectors are here to check the condition of the plant. Out of panic, Mr. Burns, who is unable to find his canary, names Homer the new owner. Homer reveals that it was all a ruse: there are no inspectors; and he had tricked Mr. Burns. As Homer's first act during his brief tenure as the plant’s owner, he fires Mr. Burns and, quite literally, overthrows him by throwing him off of the balcony where the masses flows him to a taxi-cab while singing "Na Na Hey Hey Kiss Him Goodbye". Mr. Burns then heads to Marrakesh, Morocco with Smithers to purchase a great deal of opium.

However, problems ensue when Homer is in charge of the plant. He has less time to do things with the family, much to their disappointment. He is forced to lay off employees at the plant, making himself miserable. He has to listen to the plant’s woes from his analysts while on vacation. One night, Mr. Burns visits Homer (mentioning that Smithers was arrested and sentenced to 80 years for opium possession, but seems to be ecstatic to have been put in a Turkish prison), and brings him to the cemetery, where he shows him the people who he was too busy working to have good relationships with (such as Mr. Burns' wife, who died of "loneliness and rabies").

Burns makes Homer understand how much he has missed his family. Homer decides to quit as the owner and give back ownership to Burns. However, Burns already has his own plans to take back ownership of the plant. He drugs Homer and begins to immure him in the wall of a crypt. Unfortunately for Burns, he is too weak to carry each brick from the cart to the intended wall. By the time he manages to finish a couple of layers, Homer wakes and easily steps over the few layers of bricks that Mr. Burns had painstakingly managed to cement in place.

He tells Burns that the power plant is his again, and returns home for a barbecue with his family, much happier to be back to his old life.