Alaric finds an unexpected ally to guide him on his dangerous new path, while Damon and Meredith (recurring guest star TORREY DeVITTO) try to figure out what their next move should be. At the school's 1920s Decade Dance, Bonnie asks Jamie (recurring guest star ROBERT RI'CHARD) to go with her and, at Caroline's suggestion, Elena asks Stefan to be her date. Caroline is pleasantly surprised when Tyler shows up at the dance determined to sweep her off her feet, but Klaus does his best to come between them. The dance takes a deadly turn when Damon and Stefan realize they need the help of Matt, Jeremy and especially Bonnie to undo a spell that could prove devastating for everyone.
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