This week, we realize there are not one, but three dangerous psychopaths on Wisteria Lane!
We find out Nick was the undercover agent on Angie's tail. Rather than turn her in, her convinced her to go into hiding with him and raise Danny as his own. Patrick learns from Danny (who has no idea who Patrick really is) that Nick likes to go jogging, so that night, Patrick runs Nick down with his car! Nick is sure that it was Patrick and urges Angie to take Danny and flee for safety. Danny isn't convinced, but he agrees to hide.
The doctors want to put Nick into an induced coma, so he asks her to join Danny at their safe house. Too late! She goes home to find Patrick waiting for her! Patrick tells her, "You are going to do me a favor. Just do what I want, baby," he says. "And I'll let you [and Nick] both live."