'Southland': Behind the scenes photos from tonight's game-changing episode -- EXCLUSIVE

Image Credit: Doug Hyun/TNT

The good days are few and far between for the characters on Southland, and tonight’s episode is no exception. In fact, you could say that tonight is a very, very bad day — and not just for John and Ben, who are seen here taking down a man on PCP. [Spoiler phobes stop here.]

In the episode, Ben learns that he’s still very much in the training process after he botches several calls (including the pictured one involving the man in tighty-whiteys), and Lydia works a case only to find out the suspect is who she least expected. Meanwhile, Nate and Sammy work a case that turns out to have extreme consequences. Consider this your warning: Don’t miss the last five minutes. Yes, people always say that, but we mean it this time. Everything will change.

Image Credit: Doug Hyun/TNT

Image Credit: Doug Hyun/TNT

Southland airs at 10 p.m. ET on TNT.