After learning that the man she has known as Michael Vaughn is under investigation and suspected of being a double agent, Sydney begins to question whether their business and personal relationship over the years had all been a lie. When she discovers that she's pregnant with Vaughn's baby, she becomes determined to uncover the truth about him. Meanwhile, because of Jack's past betrayal by Irina, he begins to worry that his daughter may suffer the same fate that he did.

Episode Viewers and Ratings

Season 5 Episode 1 of Alias resulted in a 0.00 rating in the 18-49 demographic.

Alias Season 5 Episodes...

• s05e01 - Prophet Five
• s05e02 - ...1...
• s05e03 - The Shed
• s05e04 - Mockingbird
• s05e05 - Out of the Box
• s05e06 - Solo
• s05e07 - Fait Accompli
• s05e08 - Bob
• s05e09 - The Horizon
• s05e10 - S.O.S.
• s05e11 - Maternal Instinct
• s05e12 - There's Only One Sydney Bristow
• s05e13 - 30 Seconds
• s05e14 - I See Dead People
• s05e15 - No Hard Feelings
• s05e16 - Reprisal
• s05e17 - All the Time in the World (2)

Alias Show Summary

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.