Season 7 episode 1 of "Pretty Little Liars" is titled "Tick-Tock, Bit---s" and it will see the gang racing against time to save Hanna, who was abducted by Uber A in the Season 6 finale after their plan to trick Uber A into revealing his identity failed miserably.

The plan involved Hanna confessing to killing Charlotte despite being innocent. But the Season 6 finale saw an unconscious Hanna being dragged through the bell tower by the villain.

According to spoilers, the first episode of the season will see the girls making one of the biggest mistakes of their lives, and it will mark the beginning of the end of Uber A's game. It is not immediately known what the mistake is.

Interestingly, Reddit has a number of theories on what viewers can expect in the upcoming episode, and according to one post, there is compelling evidence to prove that Mary Drake, Jessica DiLaurentis' twin sister, is Toby's mom.

"Think of it this way, Cece wanted toby on the A team. She didn't recruit any other boyfriends except toby because she wanted the A-team to be an A-family," one Reddit user wrote. "She also wanted toby to know what happened to his mother, and give a lot of clues. Keep in mind that Toby had the "Pretty eyes" code name when he was A and it was brought up AGAIN in 6x20. Maybe it was to remind us of his connection to Charlotte."

Reports also note that viewers will get to see Charlotte's real father in the second half of the season.

The official synopsis for "Tick-Tock, Bit---s" reads:

After Hanna's shocking abduction by "Uber A," the PLLs and company desperately race against the clock to save one of their own. The only way to do this is by handing over evidence of Charlotte's real murderer to "Uber A." In order to do so, the girls must decide what blatant lines they are willing to cross that they have never breached before; and once they cross that line, there is no turning back.

"Pretty Little Liars" airs Tuesdays on Freeform. CLICK HERE to watch the episode online.