Don makes some new friends on his trip to Los Angeles; Peggy looks for romance; Duck ponders the future of Sterling Cooper.
Alex uses the restoration and upcoming race of Jerry's junky old car as an opportunity to develop her relationship with her "gear head" crush, Dean. Meanwhile, Max orders a mind-reading kit.
Sookie seeks refuge from her friends' and neighbors' inner voices; Jason wrestles with withdrawal symptoms; Tara's mother needs her help; Sam and Tara make a connection.
The team receives new evidence in a 1964 case which was then though to have been a hit-and-run. Now, a threatening letter addressed to the victim prompts Will and Kat to travel to Mississippi to re-investigate the death of a woman who was secretly involved in giving school supplies for black children.
While the Unit is investigating a man they believe to be smuggling nuclear weapons, they discover that he is also smuggling women.
Charlie wants to help Daisy with her porn career, while Hanks starts writing Lew Ashby's biography. Becca has her first day at a private school, while Karen meets Sonja and Julian again.
Dexter and a pedophile have a run-in; Dexter is unable to restore Freebo's good name after he is accused of a murder he didn't commit. Also, Dexter's friendship with Miguel weighs on his mind.
Bree's estranged daughter, Danielle, returns to Wisteria Lane and is met with a deluge of criticism. Meanwhile, Gabrielle and Susan find themselves embroiled in a catfight brought on by an altercation between their kids. To her chagrin, Lynette comes home to find Tom and Dave have formed a garage band after she told him to get rid of his old things. Finally, Katherine and Mrs. McCluskey invite Edie to lunch to press her for more information on Dave.
When Ty comes back to Heartland, he quickly realizes that profound changes have occurred in his absence. Caleb, the new ranch hand, seems to have taken over both his job and his place in Amy's heart.
In an auction hosted by Donny Osmond, Hannah is up for bid in a special "Date with Hannah Montana" prize. Ray Romano makes an appearance at the auction, although Hannah doesn't know who he is. After a bidding war between Hannah's crush Johnny Collins and Rico, she has to take both on the date together.
Miller's personal and professional lives are put under jeopardy when his daughter Cheryl is kidnapped, Aunt Peggy thinks she is dying, a suspicious man stays at the Aidensfield Arms who could be connected to a possible assassination attempt on a foreign leader who is attending a conference.
Emmalin's pen pal could cause trouble. Denise finds a new friend. Roland becomes a stay at home dad.
Peyton is shocked to learn that he is battling the lead singer of his favorite band, and is offered free tickets to the next concert if he can win.
Tina Nordström visits Åland, Finland's autonomous island in the Baltic Sea, where she prepares delicious food on the deck of an historic ship.
Sam owes Carly and Freddie $526, so she gets a job to earn the money, and pay them back. Carly, Sam, and Freddie make a broadcast on iCarly to all their fans to donate money to Sam. However, they find out its illegal to solicit money over the internet. Meanwhile Spencer tries to impress an attractive single mom by helping her daughter sell fudge balls, an equivalent to Girl Scout cookies, but two scouts stole Spencer's place at the market. Spencer comes up with the idea to send every iCarly fan who sent them money to send them fudge balls. Carly and Freddie then hire someone to give the money they earned to Sam in a tip. At the end, everyone enjoys what Sam got with her money except Spencer.
With her sights set firmly on Merlin, Nimueh tricks him into drinking from a poisoned chalice, and he falls dangerously ill. Arthur ventures forth deep into the forest of Balor to find the antidote, but little does he know that he's walking into a trap
The clubhouse's "silly switch" gets stuck and makes everyone act in comical ways, such as Mickey only speaking in rhyme and Pluto making every animal sound except barking.