Check out these sneak peek clips of “Pretty Little Liars” Season 4B premiere, “Who’s in the Box?”

Above, the girls wonder if Alison (Sasha Pieterse) reached out to her brother Jason. What does he know about Ali’s disappearance and/or her still being alive? Spencer (Troian Bellisario) thinks it’s something worth pursuing and we all know that if Spencer thinks you should do something, you should probably do it.

Below, look who’s back in Rosewood — Spoby, together again. Toby (Keegan Allen) brings news of his mother’s “suicide” at Radley, but you’ll have to wait until the premiere to find out what it is.

And finally, Mona (Janel Parrish), who is now toodling around town in Jenna’s powder blue Mustang, tries to reach out to Hanna. But Hanna (Ashley Benson) isn’t having it. She’s still not sure whose side Mona is on — and neither are we, which is honestly just the way we like Mona.

“Pretty Little Liars” returns Tuesday, Jan. 7 at 8 p.m. ET/PT on ABC Family.

Posted by:Andrea Reiher

TV critic by way of law school, Andrea Reiher enjoys everything from highbrow drama to clever comedy to the best reality TV has to offer. Her TV heroes include CJ Cregg, Spencer Hastings, Diane Lockhart, Juliet O'Hara and Buffy Summers. TV words to live by: "I'm a slayer, ask me how."