Lily is gearing up to reunite with Julian in the upcoming episode of "The Vampire Diaries", and Julian's imminent re-entry into their lives is going to force Valerie to team up with the Salvatore brothers – Damon and Stefan.

Stefan and Valerie have a history, and it remains to be seen how comfortable they are with each other, especially as Valerie reveals that she was pregnant with his child before Julian ruined their future.

Damon's reaction to Valerie's true identity is also going to be interesting.

"The three of them on the road is a funny dynamic because Damon just figured out, 'Oh, this is V-Card Valerie, the one Stefan slept with!'" executive producer Caroline Dries told TVLine.

Elsewhere in the episode, fans will see Enzo and Bonnie trying to figure out the mystery behind the Phoenix Stone. The Bennett witch managed to resurrect two dead people using the stone, and "Live Through This" will focus on her quest to find the aftermath of using the stone.

"In less than 24 hours, I raised two people from the dead with a sketchy spell and something called a Phoenix Stone. No research, no rehearsal time and no contingency plan," Bonnie explains in a sneak peek. "And now that I have a little breathing room, I want to figure out what kind of magic I was dealing with just in case I opened up Pandora's rock."

"The Vampire Diaries" is aired Thursdays on the CW. Click here to watch the episode online.

The official synopsis for the episode reads:

After realizing the downward spiral he was on, Damon (Ian Somerhalder) decides he's going to turn over a new leaf and that his actions moving forward will do right by Elena. Lily (guest star Annie Wersching) prepares for the arrival of a special figure from her past, while Enzo (Michael Malarkey) stands by not sure what to expect. Elsewhere, at Caroline's (Candice King) urging, Stefan (Paul Wesley) comes face-to-face with Valerie (guest star Elizabeth Blackmore) and learns some upsetting details about her past, while Enzo and Bonnie (Kat Graham) find themselves at odds when they're forced to fend off a violent threat. Finally, when Bonnie learns some disturbing information involving the Phoenix stone, she is forced to confront Alaric (Matt Davis).