WatchTrove
US My List

Episode guide

Star Trek: Enterprise: Season 4

Poster for Star Trek: Enterprise Season 4

22 episodes · premiered Oct 8, 2004

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.

Star Trek: Enterprise: cast and where to watch

  1. Episode 1: Storm Front (1) Oct 8, 2004 · 43m · TMDB 7.2 Archer and the NX-01 find themselves in Earth's past, with events of World War II altered by the Temporal Cold War.
  2. Episode 2: Storm Front (2) Oct 15, 2004 · 43m · TMDB 6.9 With Silik's help, Archer hones in on the temporal operative who altered Earth's past and threatens to destroy all of time.
  3. Episode 3: Home Oct 22, 2004 · 43m · TMDB 7.8 Once the NX-01 finally returns to Earth, the weary crewmen face repercussions of their journeys, both positive and negative.
  4. Episode 4: Borderland (1) Oct 29, 2004 · 43m · TMDB 7.8 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.
  5. Episode 5: Cold Station 12 (2) Nov 5, 2004 · 43m · TMDB 7.7 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.
  6. Episode 6: The Augments (3) Nov 12, 2004 · 43m · TMDB 7.7 In defiance of their "father," Arik Soong's Augments devise a heinous plot against the Klingons which will surely lead to interstellar war.
  7. Episode 7: The Forge (1) Nov 19, 2004 · 43m · TMDB 7.9 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.
  8. Episode 8: Awakening (2) Nov 26, 2004 · 43m · TMDB 7.9 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.
  9. Episode 9: Kir'Shara (3) Dec 3, 2004 · 43m · TMDB 7.9 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…
  10. Episode 10: Daedalus Jan 14, 2005 · 43m · TMDB 6.5 The inventor of the transporter, Emory Erickson, comes aboard Enterprise for a risky experiment.
  11. Episode 11: Observer Effect Jan 21, 2005 · 43m · TMDB 7.7 Non corporeal aliens study the Enterprise crew as they respond to a fatal viral infection brought on board from an away mission.
  12. Episode 12: Babel One (1) Jan 28, 2005 · 43m · TMDB 8.1 Enterprise journeys to Babel with a Tellarite ambassador on board for peace talks with the Andorians, when a distress call from Shran is received.
  13. Episode 13: United (2) Feb 4, 2005 · 43m · TMDB 8.2 Archer tries to unify the Andorians, Tellarites and Vulcans in a plan to capture a marauder ship threatening to destabilize the region.
  14. Episode 14: The Aenar (3) Feb 11, 2005 · 43m · TMDB 7.9 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.
  15. Episode 15: Affliction (1) Feb 18, 2005 · 43m · TMDB 7.8 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.
  16. Episode 16: Divergence (2) Feb 25, 2005 · 43m · TMDB 7.6 With Columbia's help, the Enterprise crew grapples with sabotage to their ship as they pursue the truth behind the kidnapping of Phlox.
  17. Episode 17: Bound Apr 15, 2005 · 43m · TMDB 6.3 As a gift for negotiating with the Orion Syndicate, Captain Archer receives three Orion Slave Girls.
  18. Episode 18: In a Mirror, Darkly (1) Apr 22, 2005 · 43m · TMDB 7.7 In the mirror universe, Commander Archer mutinies against Captain Forrest in order to capture a future Earth ship found in Tholian space.
  19. Episode 19: In a Mirror, Darkly (2) Apr 29, 2005 · 43m · TMDB 7.6 In the mirror universe, Archer commandeers the 23rd-century Defiant from the Tholians and uses it in a nefarious power grab.
  20. Episode 20: Demons (1) May 6, 2005 · 43m · TMDB 7.5 A xenophobic faction of humanity threatens to undermine talks to form a new coalition of planets.
  21. Episode 21: Terra Prime (2) May 13, 2005 · 43m · TMDB 7.8 A human isolationist leader threatens to destroy Starfleet Command unless all aliens leave Earth immediately.
  22. Episode 22: These Are the Voyages... May 13, 2005 · 43m · TMDB 6.0 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.