Sydney and Vaughn go undercover as a married couple to find a weapon, but soon realize that the town which they are in, is not what it seemed.
Season 4 Episode 5 of Alias resulted in a 0.00 rating in the 18-49 demographic.
s04e01 - Authorized Personnel Only (1)
s04e02 - Authorized Personnel Only (2)
s04e03 - The Awful Truth
s04e04 - Ice
s04e05 - Welcome To Liberty Village
s04e06 - Nocturne
s04e07 - D?tente
s04e08 - Echoes
s04e09 - A Man of His Word
s04e10 - The Index
s04e11 - The Road Home
s04e12 - The Orphan
s04e13 - Tuesday
s04e14 - Nightingale
s04e15 - Pandora
s04e16 - Another Mister Sloane
s04e17 - A Clean Conscience
s04e18 - Mirage
s04e19 - In Dreams...
s04e20 - The Descent
s04e21 - Search and Rescue
s04e22 - Before the Flood
Grad student Sydney Bristow discovers that her unique after-school job as an agent for SD-6, a top-secret division of the CIA, holds some deadly secrets that threaten the security of the free world.
Recruited freshman year, the shy Sydney jumped at the chance to add some excitement to her life. Little did she know how great she'd be at espionage. Today Sydney is no longer shy or alone. Boyfriend Danny has just proposed and her best friend Francie couldn't be happier. Her friend Will, however, has to feign happiness, keeping his unrequited love for her to himself.
Sydney's SD-6 partner, Dixon, a devoted family man, warns her not to reveal her secret to Danny, and Sydney knows that SD-6 leader Sloane would not tolerate a breach of security. Even Marshall, SD-6's highly inventive but socially lacking weapons and gadget maker knows that divulging their identities is strictly verboten.
After Sydney tells Danny, he's cuddled and her life is spun sideways. She finds that her estranged father, Jack, is also SD-6 and that the group is not part of the CIA, but actually an enemy of the United States. Sydney seeks the aid of the real CIA and is put under the command of operations officer Vaughn, who enlists her as a double agent. Her mission is to complete her cases at SD-6 while reporting her findings back to the CIA. But when Sydney finds out that her father is also affiliated with the CIA, she begins to question where his true allegiances really lie.