- 1 Are You...?
Deb tries to cover up involvement in Travis' murder; Detective Mike Anderson has an unfortunate run-in; Quinn and Batista make amends; LaGuerta rethinks the Bay Harbor Butcher case.
Average Episode Rating: 4.3 | Air Date: 2012-09-30
- 2 Sunshine and Frosty Swirl
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.
Average Episode Rating: 4.3 | Air Date: 2012-10-07
- 3 Buck the System
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. LaGuerta, convinced the Bay Harbor Butcher is still out there, attempts to enlist Batista to help her re-open the case.
Average Episode Rating: 3.7 | Air Date: 2012-10-14
- 4 Run
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.
Average Episode Rating: 4.0 | Air Date: 2012-10-21
- 5 Swim Deep
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.
Average Episode Rating: 3.7 | Air Date: 2012-10-28
- 6 Do the Wrong Thing
Debra gets to know a local crime writer who's dug up some incriminating dirt on Hannah McKay. 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.
Average Episode Rating: 4.3 | Air Date: 2012-11-04
- 7 Chemistry
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.
Average Episode Rating: 4.0 | Air Date: 2012-11-11
- 8 Argentina
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.
Average Episode Rating: 3.7 | Air Date: 2012-11-18
- 9 Helter Skelter
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.
Average Episode Rating: 4.3 | Air Date: 2012-11-25
- 10 The Dark... Whatever
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.
Average Episode Rating: 4.7 | Air Date: 2012-12-02
- 11 Do You See What I See?
It's Christmas time, and Debra learns it may be better to receive when she gets a tip from Hannah's father... one that could lead to incriminating Dexter in a crime. Meanwhile, Dexter discovers that the man behind his mother's death has been released from prison.
Average Episode Rating: 3.7 | Air Date: 2012-12-09
- 12 Surprise, Motherfucker!
Dexter must protect himself when LaGuerta closes in on his secret.
Average Episode Rating: 3.3 | Air Date: 2012-12-16