Batista is promoted to sergeant and he seems to be taking his new position very seriously. Deb has turned over a new leaf: no drinking, no men and no smokes, she's got a new-look.
We find out Dexter is gonna be a Dad himself not before killing the wrong guy. It turns out that it was the new D.A Miguel Prado brother, Bad Move!
The guy he targeted is still out there, another new Character joins the cast Detective Quinn. Internal Affairs is crawling all over Deb, trying to get her to rat out the new guy, and Deb is having none of it. What's this guy's deal. It's gonna be intresting to see how Dexter and the new D.A get along.