Credit: Video Still

We knew Pretty Little Liars Season 2, Episode 16: “Let the Water Hold Me Down” was going to be an awesome episode, but this sneak peek takes things to a whole new level.

We finally get to see Toby (Keegan Allen) and Mona (Janel Parrish) working together, and their conversation reveals a lot. We learn there's a plan set for the following day that requires Mona to disarm some system. Whatever the "A" team has up their sleeve, Toby thinks it's "too soon," but Mona reminds him she's not the one calling the shots — there's someone else in charge.

And that someone else? Is a woman! "They need to understand that she's in charge," Mona says, and Toby agrees to "take care of it."

Whoa. Whoa. We can not wait to see how this plays out.

Credit: YouTube Photo: Pretty Little Liars Season 3, Episode 16 Sneak Peek: "She's In Charge" (VIDEO)

Find more Pretty Little Liars spoilers here.

Catch the next episode of Pretty Little Liars on Tuesday, January 22, 2013 at 8 p.m. ET/PT on ABC Family.