When Miley insists on going to the dentist without her father's hand to hold, she ultimately can’t go through with the treatment but doesn’t admit it to Robby. Her appearance as Hannah on a popular food show goes completely awry as a result of her swollen tooth.
Hayley goes on a rampage after her boyfriend breaks up with her, but she calms down when she begins dating Stan's CIA body double, Bill. Meanwhile, Steve and Roger get jobs separating male and female chicks at a Chinatown hatchery.
With the annual Hudson Heritage Rodeo looming, everyone at Heartland gets roped into the action. Jack and Tim are forced to work together on the planning committee. Meanwhile, Lou is grooming Soraya to compete in the Queen of The Rodeo competition.
As we descend beneath our modern day cities, we are met with ancient and hidden secrets. Journey with us back through history and rediscover cities of the underworld.
Sookie and Sam investigate her most recent vision; Jason helps clean up Amy's mess; Tara becomes angry with Lettie Mae; Lafayette visits a senator.
Kevin overcompensates for his recent pay cut by snatching Nora’s dream house out from under her as a gift to Scotty. Meanwhile Justin cooks up a plan to set Saul up with an unlikely candidate for a date.
Peter's boss Angela sends him back to the third grade so that he can qualify for a work promotion. Meanwhile, Brian, Frank Sinatra Jr. and Stewie open the coolest club in Quahog.
Sav and Anya plan to celebrate their six-month anniversary on the school's overnight trip. Sav's sister Alli tags along, and he becomes furious when he hears the rumors about what she did on the trip. Over at Smithdale, Manny and Emma both have a crush on their roommate, Kelly.
Peggy, Minh and Dale play the stock market together, however they lose money in their initial investment. To improve their odds they decide to study the consumer habits of an "average man" and Bill becomes the subject of their study. Meanwhile, after Peggy buys the family a new flat screen TV, Hank and Bobby have difficulty figuring out all the advanced features.
Hank tries to get the truth about Ashby; Karen confronts the record producer; Marcy detoxes at her mother's house; Charlie succumbs to temptation.
Susan's daughter Julie comes to visit with her surprising new boyfriend. Gabrielle learns that Mrs. Hildebrand has made her and Carlos heirs of her entire fortune. A reporter looks to expose Bree's imperfections. Lynette learns Porter and Anne Schilling plan to leave Fairview and disappear. Finally, everyone has gathered at a club to see the guys play in the annual "Battle of the Bands" when a fire erupts, threatening the lives of those in attendance. Some will fall as a hero will rise.
The team keeps trying to rescue Betsy Blane from Syrian captors; Mack has an opportunity to get revenge on Ryan for his affair with Tiffy.
Dexter undertakes to teach Miguel the Code, but doesn't realize he's whetting his partner's thirst for blood. Meanwhile, Debra is one step closer to finding the Skinner but a secret revealed about Anton sends him packing.
Lisa learns she is good at crossword puzzles and enters a city-wide contest. Homer discovers he has a flair for letting loved ones down so he opens Sweet Conclusions Break-Up Service, but lands himself in trouble with his daughter when he places a bet against her in the competition.
Uther's past comes back to haunt him as a mysterious Black Knight interrupts Arthur's coming-of-age celebrations, throwing down his gauntlet and challenging the Knights of Camelot to combat. The Black Knight, seemingly unstoppable, makes easy work of his combatants. But who is the Black Knight, and why is Uther so uneasy?
When the group's favorite pie shop closes down due to the death of the head chef, they go out to find the recipe for their favorite pie. The only person believed to have the recipe is the chef's granddaughter. She agrees to give them the recipe if she can go on a date with Spencer. She takes it a bit too far, and confesses that she never owned the recipe. Carly, Sam and Freddie hatch a plan to find the recipe. Meanwhile, Mrs. Benson's cousin's baby visits for a few days, making Freddie uneasy about it because his cousin always has a blank expression when she sees Freddie. Freddie tries finding a way to succeed in making his cousin laugh.
The Biker Mice discover they are not the only ones searching for tetra-hydrocarbons when they encounter an educated, soft-spoken Abominable Snowman-type creature named "A-Bomb". But will there be enough to save A-Bomb's family and give the Mice what they need to finish the Regenerator?
Richard visits his birthville Brennidon, which causes the D'Harans to return to the village looking for him.