Aleister casts a mind-bending spell on Elena, forcing her into a battle against her own dark fears and demons. Meanwhile, Rachael is locked in a cage with Logan, struggling to come to terms with what he is. In a nearby forest, Clay and Paige must overcome their personal differences in order to find Aleister’s compound.
Rachel and Logan battle their own demons as Aleister’s Undoing takes hold of the witches and has unexpected consequences for the wolves. The Pack and the Coven do their best to defeat him before sunrise—when life as they know it will change forever if Aleister and Clara get their way. A reluctant Ruth resorts to Left Hand magic to fight her son while a surprise ally appears to offer help to Jeremy and his Pack.
Elena struggles to deal with a new discovery about her past. Clay readies Stonehaven for a possible attack from the Spanish by calling in new Pack members. Little does he know that one of them is a traitor. Meanwhile, Jeremy and Nick find a clue at the Spanish hideout that ultimately leads to them rushing back to Stonehaven.