Episodes
- S4 E1 - Storm FrontOctober 7, 200443minArcher and the NX-01 find themselves in Earth's past, with events of World War II altered by the Temporal Cold War.This video is currently unavailable
- S4 E2 - Storm Front, Part IIOctober 14, 200443minWith Silik's help, Archer hones in on the temporal operative who altered Earth's past and threatens to destroy all of time.This video is currently unavailable
- S4 E3 - HomeOctober 21, 200443minOnce the NX-01 finally returns to Earth, the weary crewmen face repercussions of their journeys, both positive and negative.This video is currently unavailable
- S4 E4 - BorderlandOctober 28, 200443minWhen 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.This video is currently unavailable
- S4 E5 - Cold Station 12November 4, 200443minArik 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.This video is currently unavailable
- S4 E6 - The AugmentsNovember 11, 200443minIn defiance of their 'father', Arik Soong's Augments devise a heinous plot against the Klingons which will surely lead to interstellar war.This video is currently unavailable
- S4 E7 - The ForgeNovember 18, 200443minEarth'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.This video is currently unavailable
- S4 E8 - AwakeningNovember 25, 200443minArcher and T'Pol encounter the Syrrannites, a radical group hiding in the Vulcan desert, while the NX-01 crew contends with Vulcan power ploys.This video is currently unavailable
- S4 E9 - Kir'SharaDecember 2, 200443minArcher, 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.This video is currently unavailable
- S4 E10 - DaedalusJanuary 13, 200543minThe inventor of the transporter, Emory Erickson, comes aboard Enterprise for a risky experiment.This video is currently unavailable
- S4 E11 - Observer EffectJanuary 20, 200543minNoncorporeal aliens study the Enterprise crew as they respond to a fatal viral infection brought on board from an away mission.This video is currently unavailable
- S4 E12 - Babel OneJanuary 27, 200543minEnterprise journeys to Babel with a Tellarite ambassador on board for peace talks with the Andorians, when a distress call from Shran is received.This video is currently unavailable
- S4 E13 - UnitedFebruary 3, 200542minArcher tries to unify the Andorians, Tellarites and Vulcans in a plan to capture a marauder ship threatening to destabilize the region.This video is currently unavailable
- S4 E14 - The AenerFebruary 10, 200543minArcher 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.This video is currently unavailable
- S4 E15 - AfflictionFebruary 17, 200543minWhile 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.This video is currently unavailable
- S4 E16 - DivergenceFebruary 24, 200543minWith Columbia's help, the Enterprise crew grapples with sabotage to their ship as they pursue the truth behind the kidnapping of Phlox.This video is currently unavailable
- S4 E17 - BoundApril 14, 200543minAs a gift for negotiating with the Orion Syndicate, Captain Archer receives three Orion Slave Girls.This video is currently unavailable
- S4 E18 - In a Mirror, DarklyApril 21, 200543minIn the mirror universe, Commander Archer mutinies against Captain Forrest in order to capture a future Earth ship found in Tholian space.This video is currently unavailable
- S4 E19 - In a Mirror, Darkly Part IIApril 28, 200543minIn the mirror universe, Archer commandeers the 23rd-century Defiant from the Tholians and uses it in a nefarious power grab.This video is currently unavailable
- S4 E20 - DemonsMay 5, 200543minA xenophobic faction of humanity threatens to undermine talks to form a new coalition of planets.This video is currently unavailable
- S4 E21 - Terra PrimeMay 12, 200543minA human isolationist leader threatens to destroy Starfleet Command unless all aliens leave Earth immediately.This video is currently unavailable
- S4 E22 - These Are The VoyagesMay 12, 200543minSix 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.This video is currently unavailable