with 2 episodes premiered on Invalid Date

with 22 episodes premiered on September 30, 2001

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, T… see more

with 22 episodes premiered on September 29, 2002

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… see more

with 22 episodes premiered on September 28, 2003

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 … see more

with 22 episodes premiered on January 5, 2005

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.

with 17 episodes premiered on September 29, 2005

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 a… see more