This article contains episode summaries as well as directing and writing credits from Season 4 of the American drama/adventure television series Alias. Unlike all other seasons of the series, the fourth season aired entirely during the latter half of the American television season, from its season debut on January 5, 2005 (U.S.) to its season finale on May 25. The scheduling change allowed for a more continuous run.
This article contains episode summaries as well as directing and writing credits from Season 1 of the American drama/adventure television series Alias. Season 1 aired starting on September 30, 2001 (U.S.) and concluded on May 12, 2002.
This article contains episode summaries as well as directing and writing credits from Season 2 of the American drama/adventure television series Alias. Season 2 aired starting on September 29, 2002 and concluded on May 4, 2003.
This article contains episode summaries as well as directing and writing credits from Season 3 of the American drama/adventure television series Alias. Season 3 aired starting on September 28, 2003 (U.S.) and concluded on May 23, 2004. Additionally, a seven-minute animated short entitled Animated Alias: Tribunal was produced for the DVD release of the third season.
This article contains episode summaries as well as directing and writing credits from the fifth and final season of the American drama/adventure television series Alias. Season 5 returned to Alias's former viewing schedule by starting on September 29, 2005 (U.S.) and concluded on May 22, 2006. The previous season aired entirely in 2005, beginning in January and concluding in May.