A new sneak peek of Season 2 Episode 18 of "Finding Carter," titled "She's Come Undone," reveals a life threatening crisis involving Ben's sibling Olivia.

After the confrontation between Ben (Ben Winchell) and Carter (Kathryn Prescott), when he ratted her out to her mother Elizabeth (Cynthia Watros), the two are thrown once again into a critical situation. They find Olivia (Madison McLaughlin), who fans first learned about in Episode 15, unconscious in the bathroom, according to Hollywood Life.

Carter and Ben must decide quickly what to do with her, but Lori (Milena Govich) shows up shortly to help them handle the situation.

The episode will also feature an exclusive performance from the Vinyl Theatre and the The Knocks.

During the performance by the Vinyl Theatre, there will be a pivotal scene between Ben and Olivia, just before she is found unconscious. Ben is concerned about Olivia's behavior and demands to know if she has been drinking, but she claims she hasn't been.

"Liv, you have to stay sober," Ben says.

However, Olivia responds in anger and tells him to leave her alone.

"I am. You don't need to tell me how to live. You have a great thing going right now -- the whole family, a new life. Look, I can take care of myself," she tells him before leaving.

Will the incident bring Ben and Carter together? The two already share plenty of secrets. Carter caught Ben stealing from Jared's (Jackson Rathbone) bar in the previous episode.

When Jared found out, instead of ratting Ben out, he blackmailed him into a future favor. Both characters' recent behavior has fans questioning whether they are who they say they are.

Meanwhile, what's the deal between Ben and Olivia? Is Jared involved in illegal behavior that Carter isn't aware of?

Check out a sneak peek of Episode 18 of "Finding Carter," which airs Nov. 10 at 10 p.m. ET on MTV.