Okay, so this episode starts with 3 mysterious people coming into Burns' cell and trying to help him escape. Burns' realizing that the viewer doesn't understand what's going on, starts from the bginning. In 4 of July, Burns makes his employees throw a party to himself while they work. After something goes wrong, the police arrives and Lou finds some stolen art no the house, so Burns is sent to jail, with Smithers left in charge.
Smithers is the good boss, until he learns about Homer, Lenny and Carl opinions about him, thre he becomes Mr. Burns2. Meanwhile on jail. Burns' cellmate who is very chirstian, performs a ritual to suck all the evil on him. so Homer Lenny & CArl disguise as officers and try to help Burns breakout of prison. When they are about to leave, cellmate asks why if his evil was sucked. Burns reveals he had some evil left in a toenail which spread all over and now he is more evil.
For B-plot, we had Lisa taking care of an ant farm, Bart made SLH eat them all but one, they struggling to save her and SLH eating her. The only good line of the plot came from Homer thinking Patty ands Selma died when Lisa said "Our ants are dead"
Pretty bad execution IMO