The Expanse (Star Trek: Enterprise episode)

In April 2153, an unknown alien probe attacks Earth, cutting a destructive swath 4,000 km long, from Florida to Venezuela, and killing millions. Shortly after, Enterprise is recalled to Earth by Admiral Forrest. On the way back, Captain Archer is kidnapped by the Suliban Cabal. He accuses the Suliban leader, Silik, of being responsible for the Earth attack, but Silik professes ignorance. The Cabal's sponsor, a vague and shadowy holographic human from the distant future, gives Archer information about the Temporal Cold War and the Xindi, the race that attacked Earth. He claims the Xindi have been told by another Cold War faction that their home-world will be destroyed, in 400 years, by Humans.

Enterprise is again ambushed and comes under heavy attack as she arrives just outside Earth's solar system, this time by a Klingon Bird of Prey commanded by Captain Duras at the behest of the Klingon High Council. Fortunately, three other Starfleet vessels quickly arrive, forcing it to retreat. The crew then learn that more than 7 million people have been killed, one of them being Commander Tucker's younger sister, Elizabeth. Archer relates his encounters to Starfleet and the Vulcan High Command, and it is clear that the Xindi of the present are pre-empting the destruction of their home-world in the future. Ambassador Soval is dubious of Archer's temporal war argument, and tries to dissuade him from venturing into the Delphic Expanse, a dangerous section of space that once destroyed the Vulcan ship Vaankara.

Archer, acting on advice from the shadowy informant, scans the crashed probe, revealing a component with an unmistakable date stamp placing the date of construction at 420 years in the future. Starfleet orders Archer to take Enterprise to the Expanse to try to stop the Xindi. At the same time, Starfleet begins refitting the Enterprise with improved weapons, shields, and a detachment of MACOs (Military Assault Command Operations soldiers) are stationed aboard for the mission.

Ambassador Soval informs T'Pol that her assignment on Enterprise has been terminated by the High Command, who deem this to be purely a human matter. T'Pol logically points out that if they needed a Vulcan on the Enterprise before, they are in greater need now, so her assignment should be continued. She debates, but does not disobey. The Enterprise sets off, beginning their journey towards the Expanse, and intend to first divert course so they can return T'Pol to Vulcan. Soon after leaving Earth, they are again attacked by Duras, whereby Archer reeks havoc with the Klingon warbird by using his new torpedoes at 10 then 50% strength. Duras limps away, Archer believing he will be safe under the Vulcan sphere of influence. The Enterprise continues and soon T'Pol reveals she has resigned from the Vulcan High Command, and after telling Archer that "you need me", the side trip to Vulcan is cancelled. The Enterprise continues.

After a three-month journey, Enterprise begins to enter the Expanse when they are again attacked by Duras, who is at risk of losing everything if he fails. Tired of being dogged by him, Archer decides to unveil the 100% setting on his torpedoes, and Duras' ship is destroyed in a fireworks worthy array of sequential explosions.

The Enterprise continues.

Commander Tucker's younger sister, Elizabeth, was killed in Florida by the Xindi along with 7 million other Humans in the year 2153. The CGI depiction of the attack on Earth shows the beam hitting Florida in Moore Haven and cutting directly south, through the Big Cypress Indian Reservation in Hendry County, to Cuba, until reaching South America.

Prequel Continuity. Nowhere in the TOS universe was there ever a mention of an alien attack on Earth. Though the Xindi attack opens up a vast new season long plot line, the continuity break untethers the series from its foundation as well.

A novelized adaptation of the episode by J.M. Dillard was published as The Expanse by Pocket Books in trade paperback format in October 2003. The novel also adapted the following episode, "The Xindi". These two episodes stand as the final televised Star Trek episodes to be novelized to date.

This episode was nominated for the 2003 Emmy Award for Outstanding Special Visual Effects for a Series.

In 2016, Radio Times ranked the Xindi attack on Earth, the 45th greatest scene of all Star Trek film and television productions.[2] They note the event re-energized the show and launched a season long story arc.[2] They note, "Then came a cliffhanger episode that began with a devastating sight: an alien probe cutting a swathe of destruction across Earth."[2]

• The Expanse (TV series)

• The Expanse on IMDb
• The Expanse title listing at the Internet Speculative Fiction Database
• "The Expanse" at TV.com

• The Expanse at Memory Alpha (a Star Trek wiki)

• The Expanse at StarTrek.com