1. My Bad

8.3

. 26 September 2010. 54 min

Dexter must make a choice; Quinn stirs up trouble for Dexter but supports Deb.

2. Hello, Bandit

7.745

. 3 October 2010. 49 min

Dexter tries to focus on the children and fight his dark urges; Debra ends up on Quinn's doorstep.

3. Practically Perfect

7.98

. 10 October 2010. 49 min

Dexter hires a nanny; Debra is annoyed with her new partner; Quinn continues to investigate Rita's murder.

4. Beauty and the Beast

7.912

. 17 October 2010. 50 min

Dexter must save a life; Deb has a confrontation with a key suspect; Quinn follows up on the similarities between Dexter and Kyle Butler.

5. First Blood

7.6

. 24 October 2010. 51 min

Dexter is saddled with an unwanted conspirator; Dexter worries about how Rita's death will affect Harrison; Deb works alone; Quinn enlists an old friend's help.

6. Everything Is Illumenated

8

. 31 October 2010. 50 min

Dexter is drawn into a precarious situation; Batista discovers an interesting lead; Quinn gets information about Dexter from a questionable source.

7. Circle Us

7.696

. 7 November 2010. 48 min

Dexter is called to investigate a horrifying crime scene; the Santa Muerte case leads to a violent standoff between Debra and the Santa Muerte killers.

8. Take It!

8.314

. 14 November 2010. 52 min

Dexter and Lumen vet and stalk a violent killer; Debra gets into some unexpected trouble from the fallout of the Santa Muerte case

9. Teenage Wasteland

8.343

. 21 November 2010. 55 min

Dexter and Lumen hunt for their next victim; Debra uncovers new evidence in the Barrel Girl case

10. In the Beginning

8.294

. 28 November 2010. 54 min

Homicide uncovers some key evidence linked to one of Dexter's and Lumen's prior victims; Debra identifies two more suspects in the case.

11. Hop a Freighter

8.245

. 5 December 2010. 47 min

Dexter must do damage control; Debra's speculation begins to take shape; Quinn becomes involved in a homicide.

12. The Big One

8.3

. 12 December 2010. 55 min

Dexter realizes that he and Lumen are being lured into a trap and risks everything to escape; Quinn needs help that only Dexter can provide.