

About
Sydney Bristow, an agent who has been tricked to believe she is working for the U.S. government, is actually working for a criminal organization named the Alliance of Twelve. Upon learning this, Sydney becomes a double agent for the real CIA.
Cast
Seasons

Season 1
The first season of Alias premiered September 30, 2001 on ABC and concluded May 12, 2002 and was released on DVD in region 1 on September 2, 2003. Guest stars in season one include Sir Roger Moore, Terry O'Quinn, Quentin Tarantino, and Gina Torres. Apart from Truth Be Told, the episodes of Alias are often unconventionally structured in that the title credits are usually shown well into the plot, almost as an afterthought. Also, usually a plot finishes at mid-episode and a new plot begins, so that every episode finishes with a cliffhanger. The impression thus created is that an episode will conclude the previous one and plant the seeds of the next one.

Season 2
In the second season, plotting against rogue agency SD-6 keeps superspy Sydney Bristow almost as busy as negotiating a relationship with her long-lost mother and dealing with her growing feelings for CIA handler Vaughn. What Syd doesn't know is that there are lots more changes (costume and otherwise) ahead of her... it's going to be a long year!

Season 3
Thrown for a serious loop in the final episode of season 2, CIA agent Sydney Bristow starts season 3 dealing with a life -- and memory -- left in shambles. Luckily she has her resourceful father and her trusty partner to offer assistance as she searches for the truth. But a new double agent may be closer -- and more dangerous -- than Sydney suspects.

Season 4
The action explodes in the phenomenal fourth season when Sydney leaves the CIA to join a powerful new Black Ops unit, having no idea of the reunion in store for her.

Season 5
The final season kicks off with a shocking revelation and never lets you catch your breath as superspy Sydney Bristow faces one mother of a challenge. Old enemies and favorite guests return for the action-packed series finale.
Episodes
Season 1

Truth Be Told
Sydney's loyalties are tested after a tragedy exposes the dark side of her superiors and the underhanded doings of her own father.

So It Begins
Sydney gets shocking info on her dad's role in Danny's murder and takes on a countermission against the SD-6 to bring down an arms dealer linked to a missing nuclear weapon. Meanwhile, Will begins to grow suspicious of his friend's secret life; and Vaughn is taken off Syd's case after his mishap puts the entire world in danger.

Parity
A mission to steal an ancient sketch pits Syd against her sworn nemesis, a Russian agent who's after the same target. But when the container holding the painting proves impenetrable, the two foes are forced to team up to satisfy their respective agencies. Meanwhile, Will begins to notice something very fishy about Danny's murder; and Francie frets over her guy's possible infidelity.

A Broken Heart
Sydney and Dixon go on a dangerous case involving the safety of the United Commerce Organization. Francie confronts Charlie about his secret date with another woman, and Will continues to get closer to the truth about Danny's murder.

Doppelgänger
Sydney's secret double agent status is jeopardized after she smuggles a biotech engineer into SD-6 from her mission in Berlin. Will meets a woman who confesses that she was having an affair with Danny shortly before his death. Vaughn informs Sydney that her father may be working for a third secret operative agency.

Reckoning
Sydney goes undercover in a mental institution to get information from Shepard, a man who has been unconsciously programmed to be a deadly assassin. Meanwhile, after Sydney becomes convinced that her father was responsible for the death of her mother 20 years earlier. Will discovers the true identity of the woman who claimed having an affair with Danny and Francie is relieved to learn that Charlie is not having an affair other woman. Marshall finds the computer worm planted in the SD-6 mainframe by the CIA.

Color Blind
While helping Shepard escape from the asylum in Bucharest, Sydney discovers the shocking connection he has with her past. Meanwhile, after tracking the computer virus secretly planted by the CIA, Sloane is confronted by Alliance representative Alain Christophe, who suggests that one or more moles may have infiltrated SD-6. Will continues to investigate the woman claiming to be Danny's mistress and Sydney finds out the truth about her father's involvement in her mother's death 20 years earlier.

Time Will Tell
Sydney must undergo an extensive lie detector test to satisfy Sloane's frantic search for the SD-6 mole. Meanwhile, with nemesis Anna Espinosa following her every move, Sydney seeks out the connection that a device may have to the 500-year-old prophetic Rambaldi sketch. The mystery of Kate Jones deepens as Will continues to investigate Danny's death; and Sydney discovers that a keepsake from her mother Laura contains more disturbing connections into Jack's past alliances.
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