The ISS Enterprise was the mirror-universe counterpart of Archer's ship, commanded by Maximilian Forrest and destroyed in 2155 during a raid on Tholian space to seize the USS Defiant.
The ship appears in the two-part Enterprise story In a Mirror, Darkly, set entirely in the mirror universe. Forrest is captain and Jonathan Archer his resentful first officer. Archer mutinies to take the ship into Tholian territory, where he has learned that a starship from another universe, and from a century in the future, is being held in a drydock.
Forrest regains his freedom but agrees to continue. While Archer's boarding party is aboard the Defiant, the Tholians spin an energy web around the Enterprise and destroy it. Forrest stays at his post to give the crew time to reach the escape pods and dies with the ship.
The survivors are picked up by the Defiant, which Archer uses to crush a rebellion and then to bid for the throne, until Hoshi Sato poisons him and claims it herself.