After Harper's lunchtime Shakespeare impressions are a total bust, Alex and Stevie ask Justin to hire a rock band to play at lunchtime. Justin agrees, feeling that he owes Stevie since she got him elected to become Student Body President.
Harper is desperately trying to remember something, but she cannot. Alex offers to help Harper recall her memory, so she casts a spell on her. Harper then remembers: Stevie is a wizard, and she saw her cast a spell. Alex and Harper confront Stevie, and she confirms their suspisions by casting a spell in the ground that opens up a warp hole and a student falls in. Alex is happy that she has a wizard friend, but Harper feels left out.
Sloan returns to Mark's apartment, just as she's going into labor, and Teddy, Mark and the still-fighting Callie and Arizona are there to help with the birth and to get Mark through his grandson's pending adoption. Meanwhile Teddy sees Derek's invitation to illustrious cardiothoracic surgeon Tom Evans' as a threat to her future employment at the hospital, and the team work on a crab boat captain who has been stabbed with a giant shark hook.
Booth and Brennan investigate a death at a rock-n-roll fantasy camp where the murder weapon is a Gibson ‘57 Les Paul “Black Beauty.”
Contestants arrive for the Grand Festival. Rivals and friends gather for the competition. One competitor makes an unexpected early exit.
During a prank war with Captain Ron's resort, Captain Ron's "Captain Clam" mascot leaves Captain Ron to work at Surfer's Paradise, apparently due to Ron's crummy treatment. Everyone starts treating him like he's one of them except for a left out Wipeout, who believes the Clam is up to no good. Meanwhile Reef dates a girl from Fin's past to get her jealous, but gets more than he bargained for.
Jill hires new housewife Jennifer Gilbert to plan her holiday bash. Elsewhere, a stunned Bethenny discovers that her pregnancy was leaked on the blogosphere; drama sharpens between Alex and Jill; Sonja visits a nip-tuck doctor and a psychic.
A legendary comic from the good old days of Las Vegas is set to reunite with his partner on stage for one night only, until one half of the famous duo is found dead.
Wedding fever hits TGS, leaving Liz to sort out Grizz's dilemma when both Tracy and Dot Com want to be his best man. Jenna's new boyfriend, Paul, raises Liz and Pete's suspicions, while Jack is finally forced to deal with the death of his mentor, Don Geiss, when Geiss leaves him a strange but meaningful inheritance.
After Violet files for joint custody of Lucas, an embittered Pete voraciously fights back by hiring a tough attorney for the trial, forcing their fellow friends and co-workers to choose sides and have their personal lives dragged onto the stand and into the public eye.
Ron is furious when April mistakenly schedules a ton of meetings for him. Meanwhile, Leslie fights to preserve a historical landmark.
The demon Crowley tells Sam and Dean he can help them find the remaining Horsemen rings so they can trap Lucifer. The brothers are doubtful until Crowley leads them to Brady, the Handler for Pestilence and Death. However, Brady refuses to give up their locations and sets Pestilence after the Winchesters.
While Stefan struggles to come to terms with his past, both he and Damon reveal parts of their history to Elena, until she finally learns the truth about how they became vampires. Pearl has an ugly confrontation with Johnathan Gilbert. Damon and Alaric try to find a mysterious invention before Johnathan does. The friendship and flirtation between Jeremy and Anna continues to grow.
Demetri and Agent Banks attempt to track down a killer as questions arise about the universe course-correcting itself, when people who thought they'd escaped their fates are found dead. Mark reluctantly agrees to help Simon find his sister, Annabelle, but discovers he's withholding the truth about her true circumstances.
When a media mogul is murdered, Patrick Jane and the CBI team investigate cult leader Bret Stiles, who may have had an axe to grind following the publication of a critical story about his group.
While a tasteless prank ends with Pierce being tossed out of the group, Britta and Jeff are forced to team up against some teen newcomers at school.
When Peter disappears, Walter seeks solace in marijuana. In that state of mind, he and Astrid babysit Olivia's niece Ella, and Walter tells her a fairy tale of a gentle inventor, a stolen glass heart, a detective looking for true love, and a mysterious group of bald men known as the Watchers.
On patrol in protected waters in the Arafura Sea, a lazy comment from one Hammersley crew member to another that it's "about as routine as its gets" is the ironic curtain raiser to a day of horror. The crew of Hammersley launches a daring raid to recover a cargo of stolen uranium from armed terrorists. Kate queries Dutchy's professionalism after he injures her during a boarding party, and Mike's godson is taken hostage by smugglers.