Air date: 2012-09-30

Runtime: 56 min

After witnessing her brother kill, Debra attempts to reconcile with Dexter while struggling to cover up their involvement with the murder.

Air date: 2012-10-07

Runtime: 59 min

Miami Metro sets out to unearth new evidence on a claim from a local convict that he has new information regarding a 15-year-old crime spree; Debra tries to cure Dexter of his killer tendencies.

Air date: 2012-10-14

Runtime: 57 min

Dexter tries to bring Debra on board with his new target. While the Ukrainian mob seeks revenge for the killing of one of their own, Quinn grows close to a dancer at their strip club.

Air date: 2012-10-21

Runtime: 54 min

After capturing a deadly killer, things go awry for Miami Metro, sending Debra into a tailspin. In an effort to help his sister, Dexter enters into a dangerous game of cat and mouse, while the Ukrainian mob continues to seek revenge.

Air date: 2012-10-28

Runtime: 58 min

While trying to uncover why someone was killed on his boat, Dexter must out-maneuver a vengeful Isaak. New leads are brought to light on the Wayne Randall case by Hannah McKay, Randall's alluring former accomplice who Dexter discovers has a secret.

Air date: 2012-11-04

Runtime: 55 min

Debra gets to know a local crime writer who's dug up some incriminating dirt on Hannah McKay (Dexter's newest obsession). Quinn gets an offer he tries to refuse and Batista is drawn to a new business opportunity. LaGuerta keeps digging into the Bay Harbor Butcher case.

Air date: 2012-11-11

Runtime: 54 min

Quinn falls back into his old ways as he makes some questionable choices to protect Nadia. Things heat up as Dexter and Hannah grow closer, but when Sal Price discovers the two are involved, he wants the exclusive story.

Air date: 2012-11-18

Runtime: 58 min

Fresh out of jail, Isaak renews his pursuit of Dexter while Quinn continues his power struggle with the Koshkas. Dexter tries to keep Debra in the dark about his relationship with Hannah, but a surprise visit from Astor, Cody and Harrison throws a wrench into his plans.

Air date: 2012-11-25

Runtime: 57 min

As Dexter scrambles to track down Isaak, a power struggle erupts among the Koshka Brotherhood, which could prove to Dexter's advantage. Meanwhile, Miami Dade tries to smoke out the Phantom Arsonist.

Air date: 2012-12-02

Runtime: 54 min

Dexter is unnerved when Hannah's father pays him a surprise visit; the Phantom Arsonist's crimes become more vicious; and Quinn defends Nadia's honor and finds himself in a volatile situation. Meanwhile; LaGuerta asks a former superior for help on the Bay Harbor Butcher case.

Air date: 2012-12-09

Runtime: 58 min

As Christmas approaches, Dexter tries to balance his life with Hannah and his relationship with Debra. Dexter learns the man responsible for ordering his mother's death has been released from jail.

Air date: 2012-12-16

Runtime: 56 min

Dexter must protect himself when LaGuerta closes in on his secret.