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Star Trek: Enterprise Season 4

Star Trek: Enterprise

Season 4

October 8, 2004 22 episodes

Upon returning home after preventing a second Xindi attack, Enterprise explores cultural shifts on Vulcan; forges alliances with Earth's neighbors in the face of Romulan aggression; deals with a plague inside the Klingon Empire; explores the Mirror Universe; and overcomes xenophobic elements to lead an interstellar community.

All Episodes

Storm Front (1)
E1
Guide

E1. Storm Front (1)

43m Oct 8, 2004

Archer and the NX-01 find themselves in Earth's past, with events of World War II altered by the Temporal Cold War.

Storm Front (2)
E2
Guide

E2. Storm Front (2)

43m Oct 15, 2004

With Silik's help, Archer hones in on the temporal operative who altered Earth's past and threatens to destroy all of time.

Home
E3
Guide

E3. Home

43m Oct 22, 2004

Once the NX-01 finally returns to Earth, the weary crewmen face repercussions of their journeys, both positive and negative.

Borderland (1)
E4
Guide

E4. Borderland (1)

43m Oct 29, 2004

When genetic supermen left over from the Eugenics Wars hijack a Klingon ship, Archer must rely on their creator, the criminal Dr. Arik Soong, to help hunt them down.

Cold Station 12 (2)
E5
Guide

E5. Cold Station 12 (2)

43m Nov 5, 2004

Arik Soong leads his band of Augments to a medical facility where hundreds of genetically enhanced embryos are still stored, intending to retrieve them and bring them to life.

The Augments (3)
E6
Guide

E6. The Augments (3)

43m Nov 12, 2004

In defiance of their "father," Arik Soong's Augments devise a heinous plot against the Klingons which will surely lead to interstellar war.

The Forge (1)
E7
Guide

E7. The Forge (1)

43m Nov 19, 2004

Earth's embassy on Vulcan is bombed, and the ensuing investigation puts Archer and T'Pol on the trail of a Vulcan religious faction hiding in a treacherous desert.

Awakening (2)
E8
Guide

E8. Awakening (2)

43m Nov 26, 2004

Archer and T'Pol encounter the Syrrannites, a radical group hiding in the Vulcan desert, while the NX-01 crew contends with Vulcan power ploys.

Kir'Shara (3)
E9
Guide

E9. Kir'Shara (3)

43m Dec 3, 2004

Archer, T'Pol and T'Pau attempt to bring the Kir'Shara — an artifact believed to contain Surak's original writings — to the Vulcan capital, as the NX-01 gets involved in a Vulcan-Andorian military clash.

Daedalus
E10
Guide

E10. Daedalus

43m Jan 14, 2005

The inventor of the transporter, Emory Erickson, comes aboard Enterprise for a risky experiment.

Observer Effect
E11
Guide

E11. Observer Effect

43m Jan 21, 2005

Non corporeal aliens study the Enterprise crew as they respond to a fatal viral infection brought on board from an away mission.

Babel One (1)
E12
Guide

E12. Babel One (1)

43m Jan 28, 2005

Enterprise journeys to Babel with a Tellarite ambassador on board for peace talks with the Andorians, when a distress call from Shran is received.

United (2)
E13
Guide

E13. United (2)

43m Feb 4, 2005

Archer tries to unify the Andorians, Tellarites and Vulcans in a plan to capture a marauder ship threatening to destabilize the region.

The Aenar (3)
E14
Guide

E14. The Aenar (3)

43m Feb 11, 2005

Archer visits Shran's icy homeworld to find an Andorian subspecies called the Aenar, to determine their connection to the marauder destroying ships in the region.

Affliction (1)
E15
Guide

E15. Affliction (1)

43m Feb 18, 2005

While Enterprise visits Earth for the launch of Columbia, Phlox is kidnapped and forced to help the Klingons deal with a grave threat toward their species.

Divergence (2)
E16
Guide

E16. Divergence (2)

43m Feb 25, 2005

With Columbia's help, the Enterprise crew grapples with sabotage to their ship as they pursue the truth behind the kidnapping of Phlox.

Bound
E17
Guide

E17. Bound

43m Apr 15, 2005

As a gift for negotiating with the Orion Syndicate, Captain Archer receives three Orion Slave Girls.

In a Mirror, Darkly (1)
E18
Guide

E18. In a Mirror, Darkly (1)

43m Apr 22, 2005

In the mirror universe, Commander Archer mutinies against Captain Forrest in order to capture a future Earth ship found in Tholian space.

In a Mirror, Darkly (2)
E19
Guide

E19. In a Mirror, Darkly (2)

43m Apr 29, 2005

In the mirror universe, Archer commandeers the 23rd-century Defiant from the Tholians and uses it in a nefarious power grab.

Demons (1)
E20
Guide

E20. Demons (1)

43m May 6, 2005

A xenophobic faction of humanity threatens to undermine talks to form a new coalition of planets.

Terra Prime (2)
E21
Guide

E21. Terra Prime (2)

43m May 13, 2005

A human isolationist leader threatens to destroy Starfleet Command unless all aliens leave Earth immediately.

These Are the Voyages...
E22
Guide

E22. These Are the Voyages...

43m May 13, 2005

Six years in the future, an emotional Captain Archer and the crew return to Earth to face the decommission of Enterprise and signing of the Federation charter.

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