Dexter tracks down a serial killer in NYC as Harrison spirals from guilt.

Dexter must carefully balance attempts to help get him acclimated.

Dexter attends a mysterious gathering as Harrison struggles at work.

Harrison's fears escalate as Dexter pursues a dangerous connection.

As Dexter closes in on a murderer, Harrison faces a crisis of identity.

Dexter learns unsettling information as Harrison contemplates his future.

Dexter redirects his attention as a way to step up as a father. Claudette digs into Miami Metro's tumultuous past, inching closer to the truth. Meanwhile, Prater uncovers information that could put Harrison in serious danger.

Prater and Charley reveal they know a critical piece of information, forcing Dexter to go to extreme lengths. However, as Dexter attempts to set up a meeting with Prater, Harrison finds himself further entangled.

Charley's allegiance to Prater is pushed to its limit, forcing him to make a choice. Dexter and Harrison find themselves in a final confrontation, facing the consequences of their darkness. Season finale.