The Xindi
Written by Rick Berman & Brannon Braga
Directed by Allan Kroeker
While trying to locate the Xindi homeworld, Archer and Trip are taken prisoner on a mining planet.
Anomaly
Written by Mike Sussman
Directed by David Straiton
Space anomalies in the Delphic Expanse knock out the Enterprise's systems, making it easy prey for hostile pirates.
Extinction
Written by Andre Bormanis
Directed by LeVar Burton
While searching for Xindi on a jungle planet, Archer, Reed and Hoshi are infected by a virus that mutates them into a different alien species.
Rajiin
Story by Paul Brown and Brent V. Friedman
Teleplay by Brent V. Friedman and Chris Black
Directed by Mike Vejar
The Xindi place a beautiful woman aboard the
Enterprise so that they can learn more about humans.
Impulse
Story by Jonathan Fernandez & Terry Matalas
Teleplay by Jonathan Fernandez
Directed by David Livingston
Within the Delphic Expanse, an away team becomes trapped on a Vulcan ship and is attacked by the zombie crew.
Exile
Written by Roxann Dawson
Directed by Phyllis Strong
A telepath contacts Hoshi and offers the Enterprise information on the Xindi if Hoshi will agree to become his companion.
The Shipment
Written by Chris Black & Brent V. Friedman
Directed by David Straiton
Archer and crew infiltrate a Xindi plant to investigate the weapon that will be used against Earth.
Twilight
Written by Michael Sussman
Directed by Robert Duncan McNeill
When a spatial anomaly wipes out Archer's ability to form long-term memories, he awakens in a future where the Xindi have destroyed humanity.
North Star
Written by David A. Goodman
Directed by David Straiton
The crew discovers humans living in a 19th-century Western town deep inside the Delphic Expanse.
Similitude
Written by Manny Coto
Directed by LeVar Burton
Trip suffers a near-fatal injury, so Archer orders Phlox to grow a simbiot clone of Trip for a transplant operation.
Carpenter Street
Written by Rick Berman & Brannon Braga
Directed by Mike Vejar
Archer and T'Pol are brought to Detroit in 2004 to stop a Xindi plot.
Chosen Realm
Written by Manny Coto
Directed by Roxann Dawson
Religious zealots in the Delphic Expanse hijack the Enterprise for use as a weapon in their holy war.
Proving Ground
Written by Chris Black
Directed by David Livingston
Andorian Commander Shran travels into the Delphic Expanse to help the Enterprise locate the Xindi weapon that will eradicate humanity.
Strategem
Story by Terry Matalas
Teleplay by Michael Sussman
Directed by Mike Vejar
Archer captures Degra, the Xindi-Humanoid who created the weapon that will attack Earth, and tries to trick him into revealing its location.
Harbinger
Story by Rick Berman & Brannon Braga
Teleplay by Manny Coto
Directed by David Livingston
The crew investigates a mysterious alien they discovered inside a vortex of spatial anomalies.
Doctor's Orders
Written by Chris Black
Directed by Roxann Dawson
Dr. Phlox places the crew in temporary comas and must pilot the Enterprise through a dangerous transdimensional disturbance.
Hatchery
Story by Andre Bormanis
Teleplay by Andre Bormanis & Michael Sussman
Directed by Michael Grossman
The senior officers consider mutiny when Archer becomes obsessed with caring for a nest of Xindi-Insectoid eggs.
Azati Prime
Story by Rick Berman & Brannon Braga and Manny Coto
Teleplay by Manny Coto
Directed by Allan Kroeker
The Enterprise suffers a devastating attack and Archer is kidnapped by the Xindi while trying to destroy their super-weapon.
Damage
Written by Phyllis Strong
Directed by James L. Conway
Members of the Xindi Council question plans to destroy Earth, while Archer and his crew recover from a devastating attack.
The Forgotten
Written by Chris Black & David A. Goodman
Directed by LeVar Burton
As the crew mourns their fallen comrades, Degra offers to halt the Xindi weapon launch if Archer can prove that they have been manipulated by the Sphere Builders.
E2
Written by Michael Sussman
Directed by Roxann Dawson
While trying to use a Xindi subspace corridor, the Enterprise encounters their descendants on a 100-year-old Enterprise.
The Council
Written by Manny Coto
Directed by David Livingston
Archer and Hoshi meet with the Xindi Council while T'Pol leads a team inside one of the Delphic Expanse spheres.
Countdown
Written by Andre Bormanis & Chris Black
Directed by Robert Duncan McNeill
The Enterprise and her Xindi allies race against time to stop the arming of the powerful weapon that will destroy Earth.
Zero Hour
Written by Rick Berman & Brannon Braga
Directed by Allan Kroeker
In a final showdown against two horrific enemies, the Enterprise crew attempts to destroy the Delphic Expanse's sphere network and prevent an invasion, while Archer goes after the Xindi super weapon aimed at decimating Earth.