Michael Trevino

On Graduation Day, Mystic Falls is overrun with ghosts intent on settling old scores and fulfilling their supernatural destinies. Also available on Hulu Plus, Amazon Instant Video and VUDU

Someone has been attacking patients at the hospital. A violent wind storm causes a power outage and ghosts suddenly appear -- some with good intentions and some bent on revenge. Also available on Xfinity, CW, Amazon Instant Video and VUDU

Damon and Stefan try a brutal new approach to provoke Elena into turning her humanity back on, and Caroline is frustrated when her attempt to intervene backfires. Also available on Xfinity, CW, Amazon Instant Video and VUDU

Klaus returns to his past in New Orleans and meets with his former protégé, Marcel, a charismatic vampire with control over the city's inhabitants. Also available on Xfinity, CW, Amazon Instant Video and VUDU

When Caroline's plans for the perfect Senior Prom night are disrupted by Elena, she turns to an amused Klaus for a solution. Bonnie makes a terrifying discovery. Also available on Xfinity, CW, iTunes, Amazon Instant Video and VUDU

Elena and Rebekah (recurring guest star CLAIRE HOLT) take off in search of Katherine and find themselves in a small town in Pennsylvania, where Elena has a surprising encounter with another old acquaintance: Elijah (recurring guest star DANIEL GILLIES). Stefan and Damon are both concerned about Elena's state of mind and are determined to do what's best for her, but she makes it clear that helping her will be difficult. Damon is not sure how to react when Stefan reveals his unexpected plan for the future. Meanwhile, in Mystic Falls, Klaus receives Caroline's reluctant help and comes to a new understanding of Silas' powers. Also available on Amazon Instant Video and VUDU

Realizing that Elena needs some time away from Mystic Falls, Damon takes her to New York City, where he lived and partied hard in the 1970s. When Rebekah (recurring guest star CLAIRE HOLT) also shows up in New York, she's impressed with Elena's secret agenda. Flashbacks reveal Damon's hedonistic life in the underground club scene and a complicated encounter with Lexi (recurring guest star ARIELLE KEBBEL). Meanwhile, Caroline and Stefan try to convince Klaus that it would be in his own best interest to help them track Silas down, and Bonnie struggles to keep her grasp on reality and do the right thing. The band DEAD SARA performs. Also available on Amazon Instant Video and VUDU

Elena's new outlook has everyone concerned, leading Stefan and Damon to agree that going back to the normal routine of high school would be the best thing for her. Caroline is pleasantly surprised when Elena decides to rejoin the cheerleading squad, but her pleasure turns to shock when Elena's behavior proves dangerous. Not giving up on their search for the cure, Damon and Rebekah (recurring guest star CLAIRE HOLT) work together until his unwanted advice catches her off-guard. Klaus tries to use Hayley (recurring guest star PHOEBE TONKIN) to get the information he's after and makes an intriguing discovery in the process. Meanwhile, a bored Elena throws a wild party and gets into an ugly fight. Also available on Amazon Instant Video and VUDU

When Stefan arrives back in Mystic Falls with Elena and Jeremy, Caroline is immediately worried about Elena's state of mind. Stefan reaches out to Dr. Fell (recurring guest star TORREY DeVITTO) and Matt for help. Still on the island, Damon relays somber news to Rebekah (recurring guest star CLAIRE HOLT), and is surprised at her reaction. Together, Damon and Rebekah learn an unexpected bit of recent history from Vaughn (recurring guest star CHARLIE BEWLEY). Everyone is horrified when Bonnie reveals the rest of Shane's(recurring guest star DAVID ALPAY) plan. Finally, after Damon does his best to help her, Elena comes up with a plan of her own. Also available on Amazon Instant Video and VUDU

On the island, Damon has an ugly run-in with a Hunter named Vaughn (recurring guest star CHARLIE BEWLEY – The Twilight Saga), and realizes he is one of the Five. Stefan confesses his true feelings about the possibility of becoming human again to Elena. When a stunning new piece of information about the cure is suddenly revealed, it changes the stakes for everyone. Jeremy helps Bonnie recognize what is real and what is an illusion, and Shane (recurring guest star DAVID ALPAY) is comforted by a woman from his past,Caitlin (guest star CAMILLE GUATY – Prison Break). Back in Mystic Falls, Caroline and Tyler find that their attempt to translate the code on the Hunter's Sword is futile without help from Klaus, who has his own reasons for solving the puzzle. Also available on Amazon Instant Video and VUDU

Shane leads an expedition to a desolate island off the coast of Nova Scotia, where he believes the secret of the cure lies hidden. Also available on Xfinity