Written by Michael Sussman
Directed by David Livingston
Archer uses a sacred artifact to overthrow the Vulcan High Command while the Enterprise crew attempts to avert a war between Vulcan and Andoria.
Daedalus
Written by Ken LaZebnik & Michael Bryant
Directed by David Straiton
Emory Erickson, Archer's family friend and the inventor of the transporter, places the crew in danger as he tries to rescue his long-lost son.
Observer Effect
Written by Judith Reeves-Stevens & Garfield Reeves-Stevens
Directed by Mike Vejar
Non-corporeal aliens observe the crew's handling of a fatal virus to see if humanity is worthy of first contact.
Babel One
Written by Mike Sussman & Andre Bormanis
Directed by David Straiton
While transporting an ambassador to a trade conference, Archer uncovers a Romulan plot to start a war between the Tellarites and the Andorians.
United
Story by Manny Coto
Teleplay by Judith Reeves-Stevens & Garfield Reeves-Stevens
Directed by David Livingston
Archer unites the Andorians and Tellarites in an attempt to stop a Romulan plan to destabilize the region.
The Aenar
Story by Manny Coto
Teleplay by Andre Bormanis
Directed by Mike Vejar
Archer and Shran visit the icy Andorian homeworld in search of the telepathic Aenars, who might be piloting a marauder craft that has been destroying ships in the region.
Affliction
Story by Manny Coto
Teleplay by Mike Sussman
Directed by Michael Grossman
Dr. Phlox is kidnapped and forced to combat a virus that threatens to wipe out the Klingon Empire.
Divergence
Written by Judith Reeves-Stevens & Garfield Reeves-Stevens
Directed by David Barrett
The starships Enterprise and Columbia enter Klingon territory to rescue Dr. Phlox, who is trying to cure a Klingon plague.
Bound
Written by Manny Coto
Directed by Allan Kroeker
Archer is given three Orion slave girls as gifts — and the trio wreaks havoc on the Enterprise.
In a Mirror Darkly (Part One)
Written by Michael Sussman
Directed by James L. Conway
In the Mirror Universe, Commander Archer steals the I.S.S. Enterprise in hopes of entering Tholian space and capturing an Earth ship from 100 years in the future.
In a Mirror Darkly (Part Two)
Story by Manny Coto
Teleplay by Michael Sussman
Directed by Marvin V. Rush
In the Mirror Universe, Captain Archer uses the stolen 23rd-century U.S.S. Defiant in a desperate attempt to make himself the Emperor.
Demons
Written by Manny Coto
Directed by LeVar Burton
A xenophobic faction of humanity uses T'Pol and Trip's newborn baby to undermine Earth's involvement in a new coalition of planets.
Terra Prime
Story by Judith Reeves-Stevens & Garfield Reeves-Stevens & André Bormanis
Teleplay by Judith Reeves-Stevens & Garfield Reeves-Stevens & Manny Coto
Directed by Marvin V. Rush
Archer must rescue Trip, T'Pol, and their baby girl while stopping a group of human isolationists from destroying Starfleet Command.
These Are the Voyages…
Written by Rick Berman & Brannon Braga
Directed by Allan Kroeker
Captain William T. Riker activates a holodeck program that reveals the final mission of Enterprise NX-01's crew.
