12 Episodes · Premiered September 28, 2008 · Ended December 14, 2008
After a runin with a man, Dexter initiates a friendship with his brother, Assistant District Attorney Miguel Prado. In the meantime, Rita discovers that she is pregnant, and Debra investigates the murders of a new serial killer, called "The Skinner," hoping to gain a promotion to detective.
Dexter begins to question his blind loyalty to his father's memory. In an act of spontaneity, he wonders whether the code of Harry is a necessity anymore.
Dexter catches up with Freebo, but once again the kill goes terribly wrong.
Miguel continues to press his unwanted friendship on Dexter, who has other things to worry about - primarily a child molester who has his eye on Astor.
Dexter botches his first marriage proposal to Rita, but a shocked and grieving fiancée's display of emotions provides him with clues on how to show the proper feelings himself.
Through Miguel, Dexter learns of a wife-killer who has gone free - the perfect person for his next kill.
Miguel surprises Dexter by agreeing to his unreasonable request: access to a white supremacist already in custody.
Dexter, who once chose his own victims, is now receiving requests - one from Miguel and another from Camilla.
Dexter's friendship with Miguel grows closer - dangerously closer - when Miguel declares that he wants to make the next kill himself.
Dexter and Miguel's friendship becomes uneasy just as Rita confronts Miguel about being unfaithful toward his wife.
Dexter needs leverage against Miguel and goes looking for it - specifically the ring Miguel took from Ellen Wolf as a trophy.
Maria suspects Miguel of Ellen Wolf's murder, and Dexter knows she suspects it. Dexter will have to make his move before Miguel goes after Maria.
As the wedding day approaches, Dexter still has Ramon to deal with. Meanwhile, the Skinner is still loose, and Dexter is his next intended victim.
