Stefan and Klaus form an uneasy alliance to try and contain the danger that Connor (recurring guest star TODD WILLIAMS) has unleashed on the town. When Connor takes Jeremy, Matt and April (recurring guest star GRACE PHIPPS) hostage at the Grill, Stefan and Damon have a serious disagreement about the best course of action, and Elena is again caught between the two brothers. The situation quickly turns violent when Klaus sends one of his hybrids, Dean (guest star BLAKE HOOD – 90210), to stand up to Connor. Caroline is surprised to find Hayley (recurring guest star PHOEBE TONKIN) at the Lockwood mansion. Meanwhile, Professor Shane (recurring guest star DAVID ALPAY) works with Bonnie to help her get past her fear and guilt.