Star Trek: The Journey

Due to a militant faction's demands, Enterprise is asked to retrieve Denobulan geologists from an alien world.

Enterprise encounters the Vissians, a more technologically advanced species, and Trip finds himself transfixed on the fact the Vissians are a three-sexed species, befriending one of them with tragic results.

A group of Borg (from Star Trek: First Contact) are revived after a century frozen in Arctic ice.

After hearing of the death of a close friend, Archer tells T'Pol about his early career as an experimental warp engine pilot.

A Tellarite captures Archer in order to collect a reward from the Klingons who have been searching for the captain after the events of "Judgment". Meanwhile, a virus causes T'Pol to experience a premature pon farr.

An alien probe attacks Earth, killing 7 million people. Enterprise heads home for refitting before being sent into the Delphic Expanse in pursuit of the attackers. T'Pol resigns her commission with the Vulcan High Command to stay aboard Enterprise. Trip also has trouble sleeping due to the loss of his sister, Elizabeth Tucker, in the alien attack on Earth. Meanwhile, the Klingons pursue Enterprise in an attempt to reclaim Captain Archer as their prisoner.

The mission against the Xindi starts off with Archer and Malcolm making a visit to a mining facility in order to track down a Xindi.

The crew of Enterprise encounters the anomalies of the Delphic Expanse first-hand and deal with space pirates and a giant cloaked sphere of unknown origin.

During a wild-goose chase pursuing the Xindi, Archer, Malcolm and Hoshi are exposed to an alien virus and begin to mutate into members of a long-dead race called the Loque'eque.

A slave girl takes refuge aboard Enterprise but spies on the crew instead. Meanwhile, Archer learns that synthesized Trellium-D can be used to protect his vessel from the anomalies.

Enterprise encounters a Vulcan ship in which the crew has become violent due to a toxic effect of Trellium-D that causes neural damage to Vulcans. T'Pol becomes exposed and loses control of her emotions, becoming paranoid and nearly homicidal.

A Beauty and the Beast-like tale involving Hoshi encountering a telepathic exile (with Xindi-related information) on a deserted world. Meanwhile more spheres are discovered by T'Pol.

The Enterprise crew learns of a shipment of kemocite, a key element in a new weapon being built to destroy Earth. Archer finds a Xindi ally.

An anomaly causes Archer to lose his long-term memory. Much of the episode takes place in an alternate future after the destruction of Earth in which Archer (with the help of his caretaker T'Pol and Captain Tucker) seeks a way to correct the past.

A planet resembling the American "Old West" is found to be inhabited by humans.

Tucker becomes comatose after a plasma manifold explodes. A clone of Trip is created for the purpose of harvesting brain tissue. Archer's order to kill the clone is met with resistance when the clone, named Sim, becomes a member of the Enterprise family. Sim also reveals that Trip might be in love with T'pol.

With the help of Daniels, Archer and T'Pol go back in time after discovering a group of Xindi reptilians are creating a biological weapon in 2004 Detroit.

Religious zealots hijack Enterprise and seek to execute Archer for acts of desecration upon the spheres.

Xindi scientists test their new, planet-killing weapon in an asteroid field as Archer finds he has an ally in the Delphic Expanse.

A Xindi captive is tricked into giving Archer information about the location of the new superweapon.

Enterprise encounters the Sphere Builders for the first time. T'Pol experiences unexpected emotions and initiates a relationship with Trip. Malcolm and Major Hayes come to terms with their differences.

While Enterprise passes through a "trans-dimensional disturbance," the crew is put into hibernation, leaving Phlox in control of the ship. But is he truly alone?

Archer does everything he can to save a Xindi insectoid hatchery, to the point that his officers consider inciting mutiny against him.

After finding the weapon on Azati Prime, Archer embarks on a suicide mission to destroy it. T'Pol suddenly goes into an emotional tailspin as Enterprise suffers a devastating attack by the reptilian Xindi.

Enterprise is heavily damaged by Xindi and seeks exchange of Trellium-D for a warp coil from an alien vessel but is forced to steal it. T'Pol confesses her addiction to liquefied Trellium-D, which has caused her to lose control of her emotions.