Watch 'Pretty Little Liars' Season 7 episode 3 online live: Spencer to find out about Hanna-Caleb's kiss?

Tuesday's episode of "Pretty Little Liars" will see the Liars making a deadly mistake, thereby putting all of them in deeper trouble. At present, there isn't much information on what the mistake is, but it could be something related to Alison, as "The Talented Mr. Rollins" is expected to focus on the girls' efforts to save Alison from the mental asylum and her husband, Elliot Rollins.

CLICK HERE to watch the episode online.

Freeform has also released the synopsis for next Tuesday's episode titled "Hit, Run, Run, Run" and it will see Spencer learning about the Hanna-Caleb kiss in the Season 6B finale.

"Somebody's going to be honest with [Spencer]," executive producer Marlene King revealed to TVLine. "I can't say which of the party will be, but [Spencer] knows there's something not right with Caleb — and someone will tell her the truth about what happened that night."

How Spencer will react to this confession remains to be seen. But one thing fans can expect to see is a different Hanna. The torture she suffered after being kidnapped by Uber A has changed her completely, and going forward fans will see "a different side [to Hanna that] they haven't seen. … They're going to feel for Hanna. They're going to be upset," said Ashley Benson, whose character broke off her engagement with Jordan in the previous episode titled "Bedlam."

The synopsis for "The Talented Mr. Rollins" reads:

Still reeling from the trauma of Hanna's abduction and dark fate, the Liars must shift their focus to another one of their own. In order to protect Alison from Uber A's threats, the PLLs snap into action at a chance to rescue her from the hospital. However, in doing so, they make a deadly mistake that changes everything.

"Pretty Little Liars" airs Tuesdays on Freeform.