Season 4

08.10.2004 · 43 Min.

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

15.10.2004 · 43 Min.

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

22.10.2004 · 43 Min.

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

29.10.2004 · 43 Min.

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.

05.11.2004 · 43 Min.

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.

12.11.2004 · 43 Min.

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

19.11.2004 · 43 Min.

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.

26.11.2004 · 43 Min.

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.

03.12.2004 · 43 Min.

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.

14.01.2005 · 43 Min.

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

21.01.2005 · 43 Min.

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

28.01.2005 · 43 Min.

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

04.02.2005 · 43 Min.

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

11.02.2005 · 43 Min.

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.

18.02.2005 · 43 Min.

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.

25.02.2005 · 43 Min.

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

15.04.2005 · 43 Min.

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

22.04.2005 · 43 Min.

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

29.04.2005 · 43 Min.

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

06.05.2005 · 43 Min.

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

13.05.2005 · 43 Min.

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

13.05.2005 · 43 Min.

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.