“Kill ’em All” is what they’re calling the April 29 episode. With Bonnie’s (Kat Graham) life at stake and an uphill battle ahead of them, Damon (Ian Somerhalder) and Enzo (Michael Malarkey) lead the charge to save Bonnie before her condition worsens. Stefan (Paul Wesley) reluctantly teams up with Matt (Zach Roerig) for the sake of Bonnie and uncovers the truth behind Matt’s anger towards him. Elsewhere, determined to help her best friend, Caroline (Candice King) joins Alaric (Matt Davis) on a mission and quickly realizes how much she’s missed her former supernatural lifestyle. Finally, after their plan takes an unexpected turn, Damon makes a fateful decision that will forever change his relationship with Bonnie.