To keep Stefan from being harmed by Sloan and the Travelers, Caroline and Enzo agree to make a trip to Atlanta to find a newly discovered doppelganger. A terrifying turn of events at the Travelers' camp leads to the appearance of their mysterious leader, Markos.
Elena returns to college for the start of her sophomore year. Caroline is desperate to undo the spell the Travelers have put over Mystic Falls. While everyone thinks Stefan is off tracking a lead to get Damon and Bonnie back, Elena is shocked when she learns the truth.
Stefan arrives back in Mystic Falls looking for Enzo. At the lake, Enzo's actions cause Matt to make a startling revelation, and Jeremy makes a discovery about the anti-magic spell. Elsewhere, Damon and Bonnie stumble upon clues that make them believe they're not alone.
Caroline convinces Elena and Bonnie to attend Whitmore College's "Bitter Ball" for broken-hearted students. Bonnie is intrigued with a fellow student dabbling in witchcraft. Damon and Enzo resort to violence to convince Bonnie and Jeremy to help them get revenge.
Caroline and Elena receive some hopeful news from Alaric and Stefan, in Portland, regarding the Gemini Coven. Tyler is determined to help Liv and Luke after learning some disturbing information about their witch lineage and the impending plans their coven has for them.