But this is a fight that won't necessarily be won with fists, stakes and/or daggers alone.
In the following sneak peek, courtesy of Entertainment Weekly, we see Klaus turn on the sensitivity and the charm as he tries to bargain with Genevieve and get this potentially dangerous witch on his side.
Hayley: I hate this, I feel completely useless. Genevieve: Don't you get it? You're the point of all this. Klaus and Elijah running all over town? It's all for you. I'm a bit envious. Hayley: Great. Lucky me.