The sixth episode of this season, titled “Plan B”, will be broadcast on October 21st. Here’s its official description, courtesy of The CW via VampireSite.net:
KATHERINE CHOOSES A NEW VICTIM — Despite Elena’s (Nina Dobrev) efforts to keep Jeremy (Steven R. McQueen) safe, he offers to help Damon (Ian Somerhalder) and Alaric (Matt Davis) deal with Katherine (Nina Dobrev). Sheriff Forbes (Marguerite MacIntyre) and Caroline (Candice Accola) share a few rare moments of quality mother/daughter time. Bonnie (Katerina Graham) accidentally discovers new information about Mason (guest star Taylor Kinney) and shares it with Stefan (Paul Wesley) leading Damon to take matters into his own hands.
Sara Canning and Zach Roerig also star. John Behring directed the episode written by Elizabeth Craft & Sara Fain.