Alias: Season 4

Episodes

# Air Date Title
1 Jan 05
2005

Authorized Personnel Only (1)

Sydney quits the CIA and joins a Black Ops unit called “Authorized Personnel Only” alongside Dixon, Jack, Vaughn and… Sloane. Meanwh…

2 Jan 05
2005

Authorized Personnel Only (2)

Sydney unwillingly teams up with her father to hunt down a modern-day samurai. Meanwhile, Nadia doesn’t want to go back to the spy business, but is forced to when Sydney&…

3 Jan 12
2005

The Awful Truth

Sydney must seduce a murderous arms dealer in order to track down a stolen NSA code-breaker. Meanwhile, Vaughn fears for Weiss’s life, and Sydne…

4 Jan 19
2005

Ice

Sydney and Vaughn go undercover to track down a deadly new bio-weapon. Meanwhile, Sydney is concerned about Vaughn not having yet put Lauren behind, and Nadia turns to a Jack t…

5 Jan 26
2005

Welcome to Liberty Village

Sydney and Vaughn go undercover as a married couple so as to find a weapon that could bring back the Dark Ages. However, the neighborhood they’ve infiltrated is not as ch…

6 Feb 09
2005

Nocturne

After being infected with a hallucinogen, Sydney starts to lose touch with reality. Vaughn and Jack must rush to find an antidote before Sydney puts her life – and others…

7 Feb 16
2005

Détente

While Sydney and Nadia argue about Nadia’s acceptance of Sloane’s fatherly concerns, Sloane worries about Nadia’s well-being when she and Sydney go undercover…

8 Feb 23
2005

Echoes

Sloane temporarily steps down as Director of his Task Force and gives Jack full authority over the next assignment, which involves Anna Espinosa, Sydney’s old foe. Howeve…

9 Mar 02
2005

A Man of His Word

While Nadia is in a coma, Sark is taken into APO and to help them infiltrate Cadmus Revolutionary Front and retrieve the bomb, but in return he demand…

10 Mar 09
2005

The Index

Dixon enlists Sydney to help him prove that Sloane is double-crossing the CIA and using APO to steel the Blackwell Index, a…

11 Mar 16
2005

The Road Home

Sydney must protect the life of a civilian, whom she unintentionally put in danger. Meanwhile, Jack plans a visit with an old friend, and Vaughn uncovers more disturbing secret…

12 Mar 23
2005

The Orphan

Nadia puts her own life – as well Sydney’s and Weiss’s – in danger after failing to unveil her past through a dangerous criminal. Meanwhile, Vaughn find…

13 Mar 30
2005

Tuesday

When a mission goes wrong, Sydney’s is placed in danger and Marshall is the only one who can save her. Meanwhile, Dixon is exposed to a deadly pathogen released inside

14 Apr 06
2005

Nightingale

Sydney and Vaughn risk their lives trying to find out the truth about Vaughn’s father. Finally, we find out why Jack and Sloane seem to be conspiring together against Syd…

15 Apr 13
2005

Pandora

In an attempt to talk to Sydney, Katya Derevko deliberately poisons herself and is temporally taken out from her cell. Once Nadia tells her sister about this, Sydney visits her…

16 Apr 20
2005

Another Mister Sloane

Sydney and Vaughn tell Jack about Sloane’s alleged involvement in Vaughn’s search for his father and Irina’s contract on Sydney’s life. After cornering…

17 Apr 27
2005

A Clean Conscience

Nadia’s former caretaker, Sophia, has been severely beaten. She contacts Nadia and asks to meet her. Sloane is told by Sophia that she was beaten up, because someone is t…

18 May 04
2005

Mirage

Jack’s illness has caused him to hallucinate about a cure. Sydney must recreate the time when Jack was working for the CIA and hid the only man…

19 May 11
2005

In Dreams...

The team captures the Sloane Imposter and questions him to find a rare Rambaldi orchid. The real Sloane must relive a painful memory in order to get the Imposter to reveal the…

20 May 18
2005

The Descent

After a tactical group infiltrates the DSR and steals Rambaldi artifacts, CIA director Hayden Chase discovers that the alarm…

21 May 18
2005

Search and Rescue

Rambaldi’s catastrophic endgame begins to fall into place as a giant version of the Circumference/Mueller device is found floating over city in Russia, driving the citize…

22 May 25
2005

Before the Flood

Jack, Sydney, Irina, Vaughn and Nadia parachute into Sovogda. They’re supposed to dismantle a giant red ball turning people into zombies. At APO

About Alias

For seven years, Sydney Bristow believed she was working for a covert branch of the CIA, named SD-6. However, when she tells her fiance of her job, Arvin Sloane, head of SD-6 and an old family friend, has him murdered. With this life-shattering event, Sydney learns not only that SD-6 is a mercenary group of terrorists, but that her father, too, works for SD-6. Sydney then works with the CIA as a double agent, trying to bring down SD-6 with her father, a second double. This is only the beginning of a path of betrayal, murder, lies, and disbelief. Sydney Bristow pushes through trials of love, learns the truth about her mother, loses a friend in an utter form of incredulity, pitfalls herself into months of torture and puzzlement, and is tormented with countless revelations to come.

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