The final challenge between Dexter and Arthur comes. Debra finds out a long hidden truth. Rita admits that her marriage is troubled. Batista's and LaGuerta's relationship must face consequences.
Season 4, Episode 11 – Aired: 12/6/2009
Hello, Dexter Morgan
Dexter must stop Debra's investigation from identifying Arthur as the Trinity Killer. Meanwhile, Arthur himself is trying to identify the whereabouts of Dexter's alter ego Kyle Butler.
Season 4, Episode 10 – Aired: 11/29/2009
Dexter thinks he knows the ins and outs of the Trinity Killer until a 10-year-old boy goes missing.
Season 4, Episode 9 – Aired: 11/22/2009
Dexter continues to try to understand The Trinity Killer by talking to his family; he discovers that Arthur Mitchell may not have the perfect mask after all. With Dexter out on the prowl Rita gets a little help with her busy household from her handsome next door neighbor, but his motives may not be all that honorable. Debra continues to investigate the Trinity Killer and may be getting a little too close for her own safety.
Season 4, Episode 8 – Aired: 11/15/2009
Dexter goes on a house-building excursion with Trinity, but still doesn't kill him. The team investigates more into the Trinity case and Rita gets close with a neighbor while Dexter's out of town.
Season 4, Episode 7 – Aired: 11/8/2009
Dexter seems to have finally managed to balance work, family, and his dark passenger. But he knows the balancing act can't last. A series of murders leads the department to a prominent photographer, prompting Dexter to move him to the top of his list which doesn't sit well with Harry. But Quinn's effort to bond with Dexter poses a problem with hunting the new prey. Meanwhile, Debra returns to work and focuses on finding the Trinity Killer, which Dexter fears will put her in danger.
Season 4, Episode 6 – Aired: 11/1/2009
If I Had a Hammer
Dexter knows it's only a matter of time before the Trinity Killer's latest handiwork is discovered by Miami Metro. He has to work doubly hard to stay one step ahead of their investigation. Debra is shut out from her own case. She considers risking her career and bending the rules in the name of justice. LaGuerta and Batista realize that by playing by the rules they may have painted themselves into a corner. Dexter gleans relationship advice from a most unlikely source when the friction between Rita and Dexter comes to a head.
Season 4, Episode 5 – Aired: 10/25/2009
Debra recovers from the shooting but is emotionally distraught from Lundy's death and other life events. Dexter believes that it was the Trinity Killer and not the Vacation Murderer as the rest of the police force thinks. He gets closer to the Trinity Killer than he has ever been before.
Season 4, Episode 4 – Aired: 10/18/2009
Dex Takes a Holiday
Dexter is left home alone and with free time as Rita takes the kids on a vacation which may prove interesting for Dexter in several ways. In the meantime two other relationships are on the line: LaGuerta and Batista debate about their future and Debra's own, as she helps Lundy with the Trinity Killer investigation.
Season 4, Episode 3 – Aired: 10/11/2009
Blinded By the Light
Dexter's neighborhood gets vandalized. The Trinity Killer strikes again, Debra questions her relationship with Anton as she spends more time with Lundy, and LaGuerta and Batista's relationship gets complicated.
Season 4, Episode 2 – Aired: 10/4/2009
Remains to Be Seen
Dexter misplaces needed evidence in the Trinity Killer case, evidence which could expose his secret. Meanwhile, Miami Metro must juggle two serial killers at the same time, as the Vacation Murders might bring the city's tourism industry to a grinding halt.
Season 4, Episode 1 – Aired: 9/27/2009
Living The Dream
Dexter has to fit the newborn baby into his complex life. An old serial killer returns to Miami, and Frank Lundy returns to close the case.
Season 3, Episode 12 – Aired: 12/14/2008
Do You Take Dexter Morgan?
It is the day before Dexter's wedding, and after the police find Miguel's dead body, Dexter has two people targeting him. Now he must deal with them both while preparing for his special occasion. Meanwhile, Angel tells Deb he's put her in for a promotion, but after he finds out some information, her shield may be gone before she gets it.
Season 3, Episode 11 – Aired: 12/7/2008
I Had a Dream
Dexter ponders how to take care of his situation with Miguel, which is further complicated when someone else within the police department suspects Miguel of murder. Debra becomes emotional after making a discovery about her past. Dexter considers which friends he can truly trust, and finalizes his decision of his best man.
Season 3, Episode 10 – Aired: 11/30/2008
Go Your Own Way
Dexter and Miguel try a game of manipulation. Rita is impressed by Miguel's wedding gift. Debra has second thoughts on her relationship with Anton.
Season 3, Episode 9 – Aired: 11/23/2008
About Last Night
Dexter finds out he made a mistake teaching Miguel the code, while Debra finds out Anton has been abducted by the Skinner.
Season 3, Episode 8 – Aired: 11/16/2008
The Damage a Man Can Do
Dexter and Miguel go through a new phase in their bond, which is not an easy thing for Dexter, since it heavily breaks his father's code. Rita is having mood swings due to pregnancy. Deb confronts Quinn and his shady past. Some new information about the "Skinner" comes to surface.
Season 3, Episode 7 – Aired: 11/9/2008
Easy as Pie
Miguel finds a new target for Dexter. Dexter is asked to do the unthinkable for an old friend. Rita learns Miguel's wife believes Miguel is being unfaithful.
Season 3, Episode 6 – Aired: 11/2/2008
Sí Se Puede
Miguel is put to the test by Dexter. Rita is forced to reconsider her choices. Debra begins to feel like she had some part to play in a homicide case she's working on.
Season 3, Episode 5 – Aired: 10/26/2008
Rita wants Dexter to move in with her and the kids. Miguel gives Dexter his next mission to find the culprit who murdered his two wives for money.
Season 3, Episode 4 – Aired: 10/19/2008
All in the Family
After a failed marriage proposal, Dexter attempts to convince Rita that he wants more than a financial merger and fatherhood. He wants a family with Rita. Deb lands a new case. Miguel's brother, Ramon, is dead set on finding Oscar's murderer, which worries Dexter and Miguel.
Season 3, Episode 3 – Aired: 10/12/2008
The Lion Sleeps Tonight
After Dexter meets a pedophile at the grocery store, who's set his sights on Astor, he has to make a decision about his code. Miguel and Dexter both know the new body that showed up skinned wasn't Freebo's doing, and need to find a way to convince the Homicide Squad. Dexter is still wrestling with his potential role in the baby's life.
Season 3, Episode 2 – Aired: 10/5/2008
Dexter continues the hunt for Freebo, knowing he is still in town after finding Teegan's body. Dexter and Rita must make a decision about her pregnancy. Dexter isn't sure whether he can raise a child. Deb searches for the identity of her body, not knowing the link to the Freebo case. Dexter races to beat the rest of the police to Freebo.
Season 3, Episode 1 – Aired: 9/28/2008
Dexter has put his life back together but things may fall apart soon. His new victim is also being targeted by Assistant District Attorney Miguel Prado. Deb has to decide how to handle Internal Affairs, as they want her to turn on her new partner.
Season 2, Episode 12 – Aired: 12/16/2007
The British Invasion
The Task force believes the Bay Harbor Butcher case is closed, but Dexter still has some trouble to deal with.
Season 2, Episode 11 – Aired: 12/9/2007
Left Turn Ahead
Dexter must make a massive decision that will have an effect on all those he holds close. Meanwhile, Lila is back with a secret to blackmail Dexter.
Season 2, Episode 10 – Aired: 12/2/2007
There's Something About Harry
Doakes follows Dexter to his next crime scene and shocks him with a revelation about Harry. The Bay Harbor Butcher task force feels they are zeroing in on their man.
Season 2, Episode 9 – Aired: 11/25/2007
Resistance Is Futile
Dexter realizes it won't be easy to end things completely with Lila. Dexter tries to stay ahead of the investigations, as the manhunt for the Bay Harbor Butcher intensifies. An enemy of Dexter figures out his secret.
Season 2, Episode 8 – Aired: 11/18/2007
Dexter is attacked by the man who murdered his mother. Meanwhile, Lila wants to get closer to Dex, and Debra and Lundy close in on the Bay Harbor Butcher.
Season 2, Episode 7 – Aired: 11/11/2007
That Night, A Forest Grew
Dexter manages to get Doakes off his back. He devises a plan to get the police in another direction. Lila and Dex's relationship intensifies, and he has some interaction with Rita and the kids.
Season 2, Episode 6 – Aired: 11/4/2007
Dex, Lies, and Videotape
A copy-cat killer follows the lead of the "Bay Harbor Butcher." Dexter must destroy an incriminating surveillance video.
Season 2, Episode 5 – Aired: 10/28/2007
The Dark Defender
Dexter finds out that the man who killed his mother, right in front of him, is still alive. When he tells this to Lila, she suggests he faces the man, as part of his road to addiction recovery. But then as his sponsor she insists on tagging along.
Season 2, Episode 4 – Aired: 10/21/2007
Rita's estranged mother visits and senses something is wrong with Dexter. Masuka thinks he's developed a lead in the Bay Harbor Butcher case, which has Dexter concerned. Angel's interrogation of a witness crosses a line.
Season 2, Episode 3 – Aired: 10/14/2007
An Inconvenient Lie
Dexter sets his sights on a new victim: a murderer, so repulsive, it seems only fitting that he's a used-car salesman. Dexter almost admires the man, though, for his smooth-talking charm and effortless lying, which Dexter knows he lacks himself these days. Dexter's been unable to lie to Rita about his midnight activities, which has her thinking that he's a drug addict. She's threatened to leave him if he doesn't commit to a 12-step program to deal with his supposed addiction. While in this recovery, though, Dexter meets a sexy, mysterious woman named Lila.
Season 2, Episode 2 – Aired: 10/7/2007
Waiting to Exhale
Dexter is finding it hard to have closure on killing his brother. There is a new FBI agent to head the "Bay Harbour Butcher" case. Debra is finding it tough to put the past behind her.
Season 2, Episode 1 – Aired: 9/30/2007
Things are really beginning to heat up for Dexter: Doakes' suspicions about him are growing, his victims are escaping, and his body dump site has been found.
Meanwhile, Paul is troubling Rita over the missing shoe and Debra is going through a trauma over the Ice Truck killer incident.
Season 1, Episode 12 – Aired: 12/17/2006
Dexter follows clues left for him by the Ice-Truck Killer in an attempt to find the hostage. Paul tries to convince Rita that she and the children are not safe around Dexter.
Season 1, Episode 11 – Aired: 12/10/2006
Truth Be Told
The Ice Truck Killer puts Dexter in a life changing position when he takes someone close to Dexter hostage. Doakes begins to suspect that Dexter's odd behavior is something darker than he originally thought.
Season 1, Episode 10 – Aired: 12/3/2006
The Ice Truck Killer is back. He leaves a crime scene that brings back some horrifying repressed memories for Dexter. Paul sues Rita for sole custody of Astor and Cody.
Season 1, Episode 9 – Aired: 11/26/2006
Father Knows Best
Dexter receives notification that his biological father has recently passed away. Dexter is named as the sole heir of all his possessions including his house. Dexter goes for a weekend away with Rita, Deb, and Rudy.
Season 1, Episode 8 – Aired: 11/19/2006
Dexter suspects rich women's shrink of murder. When he visits the shrink, he is surprised by a dark secret from his past.
Season 1, Episode 7 – Aired: 11/12/2006
Circle of Friends
The police identify the Ice Truck Killer. However Dexter feels there is something wrong with the suspect. Dexter must also deal with Paul, Rita's recently paroled husband.
Season 1, Episode 6 – Aired: 11/5/2006
Return to Sender
Dexter is called to the scene of the crime at the Castillo junkyard. The Ice Truck Killer has returned Valerie Castillo's body putting Dexter in danger of being caught. A boy is found who witnessed the crime.
Season 1, Episode 5 – Aired: 10/29/2006
Love American Style
While the rest of the police department are focused on finding the Ice Truck Killer, Dexter is busy gathering evidence for his next victim. It turns out he will also discover more about relationships, love and how to make a success of it all. In doing so he gets some hilarious advice from unlikely sources and we see the first time that he actually kills two people at one time.
Season 1, Episode 4 – Aired: 10/22/2006
Let's Give the Boy a Hand
The Ice Truck Killer begins leaving pictures from Dexter's childhood at the crime scenes. Is the killer trying to tell Dexter something about his own past?
Season 1, Episode 3 – Aired: 10/15/2006
Dexter's on the trail of a recently released murderer who plans to kill again when he's sidetracked by the Ice Truck Killer's latest crime - a cut-up hooker found in a hockey ice rink.
Season 1, Episode 2 – Aired: 10/8/2006
Being wrapped up in preparing for his next victim, Dexter finds out that the Ice Truck Killer is aware of Dexter's dirty little secret.
Season 1, Episode 1 – Aired: 10/1/2006
Dexter is a forensic expert in blood patterns who works with the Miami Police Department. He is also a serial killer, who kills people that the police can't bring to justice. He has to hide his double life from his sister, his girlfriend and his co-workers. He is intrigued by a killer who has found a way to kill girls without leaving blood behind.