See the images released for The Vampire Diaries‘ upcoming World War II flashback episode, which will feature the return of Arielle Kebbel as Lexi!

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The episode will take us back to a new period in the Salvatore brothers’ life, this time the 1940s. World War II has broken out, and it looks like Damon and Stefan are enlisting in the army.

The episode description for “We’ll Always Have Bourbon Street” reads:

A FLASHBACK TO NEW ORLEANS IN 1942 — When Stefan (Paul Wesley) confronts Damon (Ian Somerhalder) with a suspicion about Elena (Nina Dobrev), Damon has no choice but to help Stefan investigate. Searching for answers, Damon and Stefan visit modern day New Orleans to see if they can find anyone who remembers the events of their last visit in 1942, including one of Damon’s former flames, Charlotte (guest star Madeline Zima). Elena, Caroline (Candice Accola) and Bonnie (Kat Graham) share a girls’ night while the Salvatore brothers are out of town, and emotions run high when Elena delivers some shocking news. At Hayley’s (guest star Phoebe Tonkin) urging, Tyler (Michael Trevino) confronts one of Klaus’ hybrids, Kimberly (guest star Alyssa Diaz), and the situation quickly escalates into violence. Finally, Damon is faced with a heartbreaking decision.

This episode of The Vampire Diaries will air on December 6. First up it’s “My Brother’s Keeper,” which airs November 29 – it’s time for another round of Miss Mystic Falls, but what will Elena do with Damon now that she and Stefan are broken up?! We’ll have to wait and see.