Star Trek: Enterprise

10 Best Episodes of Star Trek: Enterprise - Season 4

During the mid-22nd century, a century before Captain Kirk's five-year mission, Jonathan Archer captains the United Earth ship Enterprise during the early years of Starfleet, leading up to the Earth-Romulan War and the formation of the Federation.

Written by Sophie and last updated on feb 02, 2023.

PS: The following content contains spoilers!

PPS: I will admit that parts of this page was written with the help of AI - it makes my work so much easier to not start from a blank page!

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Star Trek: Enterprise - S4E19

#15 - In a Mirror, Darkly (2) (Season 4 - Episode 19)

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

The episode was rated 7.63 from 494 votes.

Star Trek: Enterprise - S4E20

#14 - Demons (Season 4 - Episode 20)

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

The episode was rated 7.64 from 481 votes.

Star Trek: Enterprise - S4E2

#13 - Storm Front (2) (Season 4 - Episode 2)

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

The episode was rated 7.67 from 507 votes.

Star Trek: Enterprise - S4E6

#12 - The Augments (Season 4 - Episode 6)

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

The episode was rated 7.70 from 459 votes.

Star Trek: Enterprise - S4E18

#11 - In a Mirror, Darkly (1) (Season 4 - Episode 18)

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

The episode was rated 7.72 from 513 votes.

Star Trek: Enterprise - S4E15

#10 - Affliction (Season 4 - Episode 15)

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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.

The episode was rated 7.72 from 464 votes.

Star Trek: Enterprise - S4E11

#9 - Observer Effect (Season 4 - Episode 11)

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

The episode was rated 7.73 from 462 votes.

Star Trek: Enterprise - S4E16

#8 - Divergence (Season 4 - Episode 16)

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

The episode was rated 7.74 from 481 votes.

Star Trek: Enterprise - S4E7

#7 - The Forge (Season 4 - Episode 7)

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.

The episode was rated 7.74 from 486 votes.

Star Trek: Enterprise - S4E21

#6 - Terra Prime (Season 4 - Episode 21)

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

The episode was rated 7.78 from 475 votes.

Star Trek: Enterprise - S4E8

#5 - Awakening (Season 4 - Episode 8)

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.

The episode was rated 7.82 from 471 votes.

Star Trek: Enterprise - S4E14

#4 - The Aenar (Season 4 - Episode 14)

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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.

The episode was rated 7.85 from 489 votes.

Star Trek: Enterprise - S4E12

#3 - Babel One (Season 4 - Episode 12)

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

The episode was rated 7.90 from 474 votes.

Star Trek: Enterprise - S4E9

#2 - Kir'Shara (Season 4 - Episode 9)

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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.

The episode was rated 7.92 from 476 votes.

Star Trek: Enterprise - S4E13

#1 - United (Season 4 - Episode 13)

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

The episode was rated 8.07 from 475 votes.

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