Back to Star Trek: Enterprise
Season 4
22 Episodes2004
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.
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Episodes (22)
Ep 1
Storm Front (1)
★7.1
2004-10-08•43m
Archer and the NX-01 find themselves in Earth's past, with events of World War II altered by the Temporal Cold War.
Ep 2
Storm Front (2)
★6.8
2004-10-15•43m
With Silik's help, Archer hones in on the temporal operative who altered Earth's past and threatens to destroy all of time.
Ep 3
Home
★7.7
2004-10-22•43m
Once the NX-01 finally returns to Earth, the weary crewmen face repercussions of their journeys, both positive and negative.
Ep 4
Borderland (1)
★7.7
2004-10-29•43m
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.
Ep 5
Cold Station 12 (2)
★7.6
2004-11-05•43m
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.
Ep 6
The Augments (3)
★7.6
2004-11-12•43m
In defiance of their "father," Arik Soong's Augments devise a heinous plot against the Klingons which will surely lead to interstellar war.
Ep 7
The Forge (1)
★7.8
2004-11-19•43m
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.
Ep 8
Awakening (2)
★7.7
2004-11-26•43m
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.
Ep 9
Kir'Shara (3)
★7.7
2004-12-03•43m
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.
Ep 10
Daedalus
★6.4
2005-01-14•43m
The inventor of the transporter, Emory Erickson, comes aboard Enterprise for a risky experiment.
Ep 11
Observer Effect
★7.6
2005-01-21•43m
Non corporeal aliens study the Enterprise crew as they respond to a fatal viral infection brought on board from an away mission.
Ep 12
Babel One (1)
★8.0
2005-01-28•43m
Enterprise journeys to Babel with a Tellarite ambassador on board for peace talks with the Andorians, when a distress call from Shran is received.
Ep 13
United (2)
★8.1
2005-02-04•43m
Archer tries to unify the Andorians, Tellarites and Vulcans in a plan to capture a marauder ship threatening to destabilize the region.
Ep 14
The Aenar (3)
★7.8
2005-02-11•43m
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.
Ep 15
Affliction (1)
★7.7
2005-02-18•43m
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.
Ep 16
Divergence (2)
★7.4
2005-02-25•43m
With Columbia's help, the Enterprise crew grapples with sabotage to their ship as they pursue the truth behind the kidnapping of Phlox.
Ep 17
Bound
★6.3
2005-04-15•43m
As a gift for negotiating with the Orion Syndicate, Captain Archer receives three Orion Slave Girls.
Ep 18
In a Mirror, Darkly (1)
★7.5
2005-04-22•43m
In the mirror universe, Commander Archer mutinies against Captain Forrest in order to capture a future Earth ship found in Tholian space.
Ep 19
In a Mirror, Darkly (2)
★7.4
2005-04-29•43m
In the mirror universe, Archer commandeers the 23rd-century Defiant from the Tholians and uses it in a nefarious power grab.
Ep 20
Demons (1)
★7.5
2005-05-06•43m
A xenophobic faction of humanity threatens to undermine talks to form a new coalition of planets.
Ep 21
Terra Prime (2)
★7.7
2005-05-13•43m
A human isolationist leader threatens to destroy Starfleet Command unless all aliens leave Earth immediately.
Ep 22
These Are the Voyages...
★6.0
2005-05-13•43m
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.