I really think that this could be a shallow grave of some sort. Why would they look at the ground like that in any other case? Ali looks like she is close to crying, but I'm sure fans are also close to tears just waiting on these answers!
Is Spencer that far off the rails that she has resorted to finding her lunch in bins? Let's hope not. She's no doubt looking for information on Charles, but will it be worth getting caught dumpster diving? She could say she's Veronica Mars...
It's Caleb, but what is he not happy about? Well, let's be honest, no one in this image looks happy. It looks as if the liars know something incriminating about him, but as always, we'll have to tune in to see what is really going on. Looks can be deceiving in Rosewood.
Given that the official episode description says that Kenneth Dilaurentis gives the liars clues they need in order to find out the truth once and for all,it only seems natural that the liars would be a little under pressure to get to the Radley documents before they are destroyed.