"Medellin" is back on the table for Vince, but Ari and producer Nick Rubenstein must make the deal happen on the holy day, Yom Kippur. They have until sundown, and must finish the deal with use of a cell phone. Eric wonders how the relationship between Vince and Amanda is affecting the deal. Drama grows attached to a race horse.
Ryotaro Nogami transforms into Kamen Rider Den-O traveling to different times using the time-traveling train DenLiner to battle the Imagin monsters and preventing them from altering the past to affect the present and future.
Susan goes into the woods to try to find Mike. Gabrielle gets into an argument with a meter man who gives her a ticket. Victor is elected mayor, and Gabrielle goes back to teach the meter man a lesson. Edie's ex-husband comes back to collect Travers. Lynette realizes she has feelings for another man.
Homer, Apu, Moe and Skinner volunteer as firemen after Homer's sleepwalking accident injures the town's firefighters. They do some light looting at the fires to make up for not being compensated, but Marge and Lisa shame them into mending their ways.
Dangle visits his ex-wife and her new husband on their anniversary. Meanwhile, Trudy, Clementine, Raineesha, and Cheresa stake-out a lecherous Meth Dealer and his girlfriends.
NorBac searches for the source of a resistant strain of c. difficile; despite his limited vision, Bob proves to be an asset to the team.
As King Henry gains in confidence, his displeasure with the way the Catholic church handles his request for an annulment of his marriage to Katherine of Aragon grows. As a result, Cardinal Wolsey's position is weakening, leaving him vulnerable to his enemies.
The dead body of pro boxer Diesel Swanson has gone missing. Things get weird when a tape shows Diesel getting up and walking out of the funeral home.
The relationship between Christopher and Paulie's falters, while A.J. grows depressed over his break-up with Blanca.
After Chris is expelled from school, he is sent to a boarding school that his grandfather Carter attended, but Chris doesn't exactly fit in. Meanwhile, the chicken returns to pick a fight with Peter.
In the fourth season finale, a hostage situation arises when the entire team is held captive while they're investigating the 2006 killings of a family who had just moved into a new house.
The vineyard opens up and the whole family attends. Holly also makes a move on Mark when Nora is gone.
A father and his son come to Peter after their insurers refuse to pay when their fishing boat is destroyed in an explosion. Lyle investigates further, discovering that the father once served a prison sentence for insurance fraud. Beatrice meets a local artist, Alan, and joins his life class as the model. The council takes revenge on Snell after his many small plots of land prevent them from building anything. Peter meets Christopher Waller's parents when he finds out that Simon's bank account has been regularly paying out to them.
Peggy tries to reach the pinnacle of real estate success by selling houses in the exclusive neighborhood of Arlen Heights, but she winds up selling pots door to door. Meanwhile the real Rusty Shackleford pays a visit to Dale.
On Halloween, Kate Johnson is killed in her bedroom, the victim of a shotgun blast. Her husband Guy is the obvious suspect, having now disappeared. In an odd twist, the couple had been part of a television broadcast the previous Halloween where hypnotist Lee Knight demonstrated that people could be induced to do anything, including murder. The dead woman's daughter, Katherine Taylor, is convinced that the hypnotic suggestions of a year ago are what caused her father to kill her mother and that Knight is responsible. When she is found dead however, the case takes yet another turn. Meanwhile, Dalziel undergoes hypnotherapy to quit smoking.
The Legion must turn to help from their greatest foes when they are unable to stop the Sun-Eater themselves. Meanwhile, Superman confronts the Sun-Eater's controller but even he may be powerless before the alien.
Martian Manhunter's prediction of an alien invasion by The Joining has come true. As Batman tries to stop them on his own, he learns that even working with a team will stop The Joining.
After receiving a message containing clues on Tweetums' whereabouts, the Loonatics and Sylth Vester seek out where Tweetums is. Meanwhile, General Deuce and Optimatus begin their plans to conquer the universe.