Star Trek: Enterprise (2001–2005)
4 user 3 critic

Zero Hour 

Archer takes Degra's ship to try to prevent Earth from being destroyed and gets some unexpected help. Enterprise tries to destroy Sphere 41, but the Sphere Builders know about the plan.


Allan Kroeker


Gene Roddenberry (based upon "Star Trek" created by), Rick Berman (created by) | 4 more credits »


Episode cast overview, first billed only:
Scott Bakula ... Capt. Jonathan Archer
John Billingsley ... Dr. Phlox
Jolene Blalock ... Sub-Cmdr. T'Pol
Dominic Keating ... Lt. Malcolm Reed
Anthony Montgomery ... Ensign Travis Mayweather
Linda Park ... Ensign Hoshi Sato
Connor Trinneer ... Cmdr. Charles 'Trip' Tucker III
Scott MacDonald ... Cmdr. Dolim
Rick Worthy ... Jannar
Tucker Smallwood ... Xindi-Primate Councilor
Josette DiCarlo ... Sphere-Builder Woman (as Josette Di Carlo)
Bruce Thomas ... Xindi-Reptilian Soldier
Andrew Borba ... Xindi-Reptilian Lieutenant
Matt Winston ... Temporal Agent Daniels
Mary Mara ... Sphere-Builder Presage




Due to the intervention of the Sphere Builders, the coalition of Humans, Primates, Arboreals and Aquatics was unable to stop the weapon from being launched. It is now only 10 hours before the weapon arrives at Earth. Only one ship is capable of catching up: the lightning-fast, but nearly powerless ship of Degra. While Archer and a team embark on a seemingly impossible mission, they get some unexpected help. Meanwhile Enterprise is send to keep their promise to the Aquatics. T'Pol and Trip still believe the destruction of Sphere 41 will do the trick, but the Sphere Builders are aware of their plans. Written by Arnoud Tiele (

Plot Summary | Add Synopsis


TV-PG | See all certifications »

Did You Know?


Scott MacDonald has appeared in all of the Star Trek television spin-offs. His most frequent Star Trek role was that of the Xindi-Reptilian, Commander Dolim during the third season of Star Trek: Enterprise (2001). He has also played the roles of Tosk in Star Trek: Deep Space Nine: Captive Pursuit (1993), Goran'Agar in Star Trek: Deep Space Nine: Hippocratic Oath (1995), Sub Commander N'Vek in Star Trek: The Next Generation: Face of the Enemy (1993) and Ensign Rollins in Star Trek: Voyager: Caretaker (1995). See more »


In her log entry near the end, T'Pol incorrectly states the year as 2152. The last few episodes have established that the year is 2154. See more »


[first lines]
Commander Dolim: If they had made us the dominant species before the wars, our homeworld would still exist.
Xindi-Reptilian Lieutenant: And our Avian brothers would still fill the skies.
Commander Dolim: We should be grateful that the Guardians have finally come to their senses. Once Earth is destroyed, the Reptilians will take their rightful place at the head of a new Xindi empire.
See more »


References Star Wars: Episode VI - Return of the Jedi (1983) See more »


Where My Heart Will Take Me
Written by Diane Warren
Performed by Russell Watson
Episode: {all episodes}
See more »

User Reviews

The entire human race depends on Hoshi?! CRAP!!!
10 April 2015 | by MartinHaferSee all my reviews

The important thing to know about this episode that it pulls out all the stops and EVERYONE and EVERYTHING comes together at once to win the day for the human race and the nascent Federation...and in the end, it all boils down to Hoshi!!! NO!!!! Considering what a whiny thing she's been, then it looks like we are all screwed, right?! Well, maybe not.

The episode begins with the super-weapon coming towards Earth--with Archer in Degra's lightly armed ship in pursuit. At the same time, Enterprise is on a mission to destroy a sphere--and hopefully destroy the network of spheres.

In this show, there are lots of surprises--including a visit from my favorite character from the series. This one will keep your pulse pounding and is THE show to see from the series. A definite must- see and a thrilling finale to the Xindi war.

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Official Sites:

Official Site




English | German

Release Date:

26 May 2004 (USA) See more »

Company Credits

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Technical Specs


Sound Mix:

Dolby Digital



Aspect Ratio:

1.78 : 1
See full technical specs »

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