Season 3
24 episodes · premiered Sep 10, 2003
After a devastating attack on Earth kills seven million people, Captain Archer and the crew of the NX-01 venture into the Delphic Expanse to seek out those responsible.
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E1 The Xindi
Captain Archer and his crew set out to gain information about the mysterious and antagonistic Xindi race.
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E2 Anomaly
Enterprise starts experiencing effects of the spatial distortions pervading the Delphic Expanse, and falls victim to predatory aliens.
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E3 Extinction
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.
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E4 Rajiin
The NX-01 gets closer to a showdown with the Xindi when Captain Archer takes on an enigmatic passenger: a beautiful slave named Rajiin.
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E5 Impulse
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.
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E6 Exile
A powerful telepath makes contact with Hoshi and offers to help Enterprise find the Xindi ... for a price.
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E7 The Shipment
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.
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E8 Twilight
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.
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E9 North Star
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.
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E10 Similitude
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.
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E11 Carpenter Street
Archer and T'Pol travel back in time to 2004 Detroit to stop a Xindi plot.
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E12 Chosen Realm
Religious zealots hijack Enterprise to use it as a weapon against the enemies of their faith.
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E13 Proving Ground
An Andorian ship led by Commander Shran arrives in the Delphic Expanse to help Enterprise hone in on the Xindi super-weapon.
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E14 Stratagem
Archer finds himself face-to-face with Degra, the designer of the Xindi superweapon, and tries to get him to reveal its location.
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E15 Harbinger
As Archer tries to unravel the mystery of a rescued alien, long-simmering feelings explode among his senior officers.
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E16 Doctor's Orders
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.
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E17 Hatchery
Archer goes to extreme lengths to save an abandoned nest of Xindi-Insectoid eggs ready to hatch.
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E18 Azati Prime
Archer sets out on a suicide mission to destroy the Xindi superweapon as Enterprise faces a brutal attack.
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E19 Damage
While dissension among Xindi ranks festers, Enterprise tries to recover from a devastating attack.
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E20 The Forgotten
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.
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E21 E²
An attempt to use a Xindi subspace corridor leads the Enterprise crew to a bizarre encounter with their own descendants.
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E22 The Council
Archer and Hoshi stand before the Xindi Council as T'Pol and Reed lead a team into the heart of a Sphere.
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E23 Countdown
With help from Xindi allies, the Enterprise crew attempts to stop the arming of the Weapon aimed toward Earth.
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E24 Zero Hour
Archer puts his life on the line in a risky gambit to intercept the Xindi superweapon and disarm it from within.