Alias Season 4 Episode Guide
Season 4 has 22 episodes, from January 5, 2005 to May 25, 2005. Descriptions stay brief and spoiler-light.
Episode 1: Authorized Personnel Only (Part 1)
Airdate: January 5, 2005
Description: Sydney quits the CIA and joins a Black Ops unit, "Authorized Personnel Only," along with Jack, Vaughn, Dixon, Marshall, Nadia and Sloane.
Episode 2: Authorized Personnel Only (Part 2)
Airdate: January 5, 2005
Description: What Sydney found out in Wittenburg may endanger her relationship with Jack.
Episode 3: The Awful Truth
Airdate: January 12, 2005
Description: Sloane says Valta, a computer that will revolutionize info gathering, was stolen from the NSA headquarters by Martin Bishop, who will deliver it to a german terrorist group.
Episode 4: Ice
Airdate: January 19, 2005
Description: Sydney and Vaughn are sent on a mission by APO to obtain a sample of Ice 5, a weapon that can freeze a person to death.
Episode 5: Welcome to Liberty Village
Airdate: January 26, 2005
Description: Posing as a Chechen couple, Sydney and Vaughn infiltrate a training camp run by the October Contingent.
Episode 6: Nocturne
Airdate: February 9, 2005
Description: After being infected by a hallucinogen, Sydney starts to lose touch with reality.
Episode 7: Détente
Airdate: February 16, 2005
Description: Nadia and Sydney go undercover as wealthy, irresponsible young heiresses to uncover the whereabouts of a deadly chemical.
Episode 8: Echoes
Airdate: February 23, 2005
Description: Sloane 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.
Episode 9: A Man of His Word
Airdate: March 2, 2005
Description: While Nadia is in a coma, Sark is taken into APO to help them infiltrate Cadmus Revolutionary Front and retrieve the bomb.
Episode 10: The Index
Airdate: March 9, 2005
Description: Dixon enlists Sydney's to help him prove Sloane is double-crossing the CIA and using APO to steal the Blackwell Index, a master blackmail list.
Episode 11: The Road Home
Airdate: March 16, 2005
Description: Sydney must protect the life of a civilian she unintentionally put in danger.
Episode 12: The Orphan
Airdate: March 23, 2005
Description: Nadia puts the ones she loves in danger when she forgets to tell them about her criminal past.
Episode 13: Tuesday
Airdate: March 30, 2005
Description: When a mission does not go well, Sydney is attacked and her life is put in danger.
Episode 14: Nightingale
Airdate: April 6, 2005
Description: Jack agrees to Sydney's request for clearence on files relating to Vaughn's father.
Episode 15: Pandora
Airdate: April 13, 2005
Description: Dixon is shot by a masked gunman.
Episode 16: Another Mister Sloane
Airdate: April 20, 2005
Description: In Poland, men posing as airport guards abduct Professor Sinclair, a nuclear physicist.
Episode 17: A Clean Conscience
Airdate: April 27, 2005
Description: The APO team watches footage of an explosion at an Indonesian embassy in Copenhagen that killed 15 people, the work of terrorists headed by Milos Kradic.
Episode 18: Mirage
Airdate: May 4, 2005
Description: Sydney tells Vaughn that she hasn't seen her father in two days.
Episode 19: In Dreams…
Airdate: May 11, 2005
Description: The Sloane imposter is questioned about the Rambaldi orchid, but first the real Sloane must remember a painful memory.
Episode 20: The Descent
Airdate: May 18, 2005
Description: A tactical group infiltrates the DSR and steals the Rambaldi artifacts.
Episode 21: Search and Rescue
Airdate: May 18, 2005
Description: A giant version of the Circumference/Mueller device is found floating over a city in Russia, making the citizens insane.
Episode 22: Before the Flood
Airdate: May 25, 2005
Description: Jack, Sydney, Vaughn and Irina parachute into Sovogda, trying to dismantle a giant red ball turning people into zombies.