DANGEROUS LIAISONS — When Rebekah (Claire Holt) turns down Klaus’ (Joseph Morgan) plea to stop Kol (Nathaniel Buzolic) and protect Jeremy (Steven R. McQueen), Klaus turns to Stefan (Paul Wesley) for help. After an angry confrontation with her father, Mayor Hopkins (guest star Rick Worthy), over his unconventional approach to ending the violence in Mystic Falls, Bonnie (Kat Graham) has a frightening run-in with Kol, followed by an unexpected visitor. Klaus complicates the already tense feelings between Stefan and Damon (Ian Somerhalder) by revealing a bit of Stefan’s personal life, then surprises Damon by asking for personal advice. Elena (Nina Dobrev) tells Stefan about her dangerous plan for Jeremy, leaving Stefan in a difficult spot. When the high school’s 1980s Decade Dance is cancelled by Mayor Hopkins, Stefan finds a charming way to make it up to a disappointed Rebekah. Brad Turner directed the episode written by Rebecca Sonnenshine (#412).