Air date: 2003-09-10

Runtime: 43 min

Captain Archer and his crew set out to gain information about the mysterious and antagonistic Xindi race.

Air date: 2003-09-17

Runtime: 43 min

Enterprise starts experiencing effects of the spatial distortions pervading the Delphic Expanse, and falls victim to predatory aliens.

Air date: 2003-09-24

Runtime: 43 min

On a mission to investigate an abandoned Xindi vessel on a jungle planet, Archer, Reed and Hoshi succumb to a virus that mutates them into a primal life form.

Air date: 2003-10-01

Runtime: 43 min

The NX-01 gets closer to a showdown with the Xindi when Captain Archer takes on an enigmatic passenger: a beautiful slave named Rajiin.

Air date: 2003-10-08

Runtime: 43 min

When Enterprise responds to a distress call from a Vulcan ship stranded in the Delphic Expanse, Archer and his boarding team are attacked by insane zombie-like Vulcans.

Air date: 2003-10-15

Runtime: 43 min

A powerful telepath makes contact with Hoshi and offers to help Enterprise find the Xindi ... for a price.

Air date: 2003-10-29

Runtime: 43 min

Archer, Reed and Major Hayes infiltrate a Xindi-Sloth industrial colony to learn more about the weapon of mass destruction that will be used against Earth.

Air date: 2003-11-05

Runtime: 43 min

A spatial distortion leaves Archer unable to form any new long-term memories. Years in the future, he wakes up one morning and is stunned to learn the outcome of the human-Xindi conflict.

Air date: 2003-11-12

Runtime: 43 min

When a settlement of humans living a 19th-century Western lifestyle is discovered on a Delphic Expanse planet, Archer and crew set out to learn how they got there.

Air date: 2003-11-19

Runtime: 43 min

When Trip suffers a catastrophic injury, his only hope for survival is a transplant from a "mimetic symbiont" which Phlox grows from one of his exotic creatures.

Air date: 2003-11-26

Runtime: 43 min

Archer and T'Pol travel back in time to 2004 Detroit to stop a Xindi plot.

Air date: 2004-01-14

Runtime: 43 min

Religious zealots hijack Enterprise to use it as a weapon against the enemies of their faith.

Air date: 2004-01-21

Runtime: 43 min

An Andorian ship led by Commander Shran arrives in the Delphic Expanse to help Enterprise hone in on the Xindi super-weapon.

Air date: 2004-02-04

Runtime: 43 min

Archer finds himself face-to-face with Degra, the designer of the Xindi superweapon, and tries to get him to reveal its location.

Air date: 2004-02-11

Runtime: 43 min

As Archer tries to unravel the mystery of a rescued alien, long-simmering feelings explode among his senior officers.

Air date: 2004-02-18

Runtime: 43 min

The fate of Enterprise is in Dr. Phlox's hands as the rest of the crew must be induced into a coma in order to survive a trans-dimensional disturbance.

Air date: 2004-02-25

Runtime: 43 min

Archer goes to extreme lengths to save an abandoned nest of Xindi-Insectoid eggs ready to hatch.

Air date: 2004-03-03

Runtime: 43 min

Archer sets out on a suicide mission to destroy the Xindi superweapon as Enterprise faces a brutal attack.

Air date: 2004-04-21

Runtime: 43 min

While dissension among Xindi ranks festers, Enterprise tries to recover from a devastating attack.

Air date: 2004-04-28

Runtime: 43 min

Two high-ranking Xindi offer to stop the launch of their superweapon if Archer can prove they've been manipulated. Meanwhile, the crew mourns their lost mates.

Air date: 2004-05-05

Runtime: 43 min

An attempt to use a Xindi subspace corridor leads the Enterprise crew to a bizarre encounter with their own descendants.

Air date: 2004-05-12

Runtime: 43 min

Archer and Hoshi stand before the Xindi Council as T'Pol and Reed lead a team into the heart of a Sphere.

Air date: 2004-05-19

Runtime: 43 min

With help from Xindi allies, the Enterprise crew attempts to stop the arming of the Weapon aimed toward Earth.

Air date: 2004-05-26

Runtime: 43 min

Archer puts his life on the line in a risky gambit to intercept the Xindi superweapon and disarm it from within.