When I got in from lunch, I watched three more. There was a kind of twist to the story in which a member of the unit who had gone rogue was actually working undercover, but I had figured it out before it was revealed.
Kind of feel bad for the producers and actors because when they finished shooting, they didn't know the show was going to be canceled. (It was one of the infamous "bubble" shows.) So, I'm going to assume, before I watch the last episode, that it's left with the expected season ending cliffhanger. We'll see.