Now that Katherine is back and living in the Salvatore mansion, tensions are on the rise as neither Stefan nor Damon have a reason to trust her. Speaking of trust, with Elijah out of the picture the Salvatores reach out to Luka and Dr.
When Stefan and Damon's lives are on the line it's up to an unexpected ally to save them both in this week's episode, "Kill or Be Killed".
It's volunteer day in Mystic Falls as the opening of a new park provides Stefan with an opportunity to make peace with Mason Lockwood.
It seems unlikely, but turning one character into the undead somehow drained the life out of the episode.
At the end of last week's episode, Catherine had just smothered Caroline in the hospital after delivering the message "Game on" to the Salvatore brothers.