The CSI's are called in to investigate a murder of a man at a local casino, they close the entire building in order to find the killer.
In the mirror universe, Commander Archer mutinies against Captain Forrest in order to capture a future Earth ship found in Tholian space.
Enterprise returns to Earth to a hero's welcome, Archer is haunted by his experiences and actions in the Expanse. Meanwhile, realising that his home has been destroyed, Trip travels to Vulcan with T'Pol, where she faces a difficult situation.moreless
An alien race known as the Xindi launch an attack on Earth, causing great casualties and massive damage. As Enterprise heads back home, an unlikely source informs Archer about the Xindi and that their next attack will destroy Earth.moreless
The Enterprise crew find a small craft drifting in space and are surprised to find it contains a human corpse. More questions arise when both the Suliban and Tholians make claims to the craft.moreless
Both the Vulcans and the Andorians make a claim to a small planet and military conflict soon erupts. As the fighting goes on, the Vulcans announce they are willing to discuss cease fire terms. However, Imperial Guard officer Shran believes only Captain Archer can be trusted to mediate the situation, which drags the Enterprise crew into the tense situation.moreless
Archer spends a night in sickbay after Porthos falls ill with a deadly virus following a visit to an alien planet.
Enterprise is sent to the planet Mazar to pick up a Vulcan ambassador who has been expelled for misconduct.
A strange, alien creature comes aboard Enterprise, and captures several crew members in its cocoon-like web. With her crewmates' lives in jeopardy, Hoshi faces her biggest challenge yet, in trying to communicate with the lifeform, in order to return it to its home planet.moreless
Enterprise encounters a group of Vulcan civilians who have split off from the normal way of Vulcan life in an effort to explore their emotions. T'Pol is disturbed by the new visitors and warns the Captain that all attempts in the past to integrate Vulcan emotions into their lives has proven disastrous. Meanwhile, a message from Admiral Forrest leaves the Captain with the difficult task of trying to convince one of the visiting Vulcans to call home to speak with his dying father.moreless
Archer and the crew are disappointed to discover that T'Pol has been ordered by the Vulcan High Command to leave Enterprise--and equally frustrated at her seeming indifference to leaving their ranks. T'Pol's last mission as a Starfleet officer, however, proves eventful when she and Archer are kidnapped by a militant faction on an alien planet.moreless
While investigating a gas giant, Enterprise comes across a damaged vessel hovering in the atmosphere, and T'Pol, Hoshi and Malcolm board the vessel to investigate. However, once aboard, they are ambushed by a hostile female Klingon who hijacks their shuttlepod and strands them on the Klingon ship, which threatens to implode under the pressure of the planet's atmosphere.moreless
Enterprise is dispatched by Starfleet Command to assist the Fortunate, a human freight vessel that has been attacked by Nausicaan pirates.
After decades of being held back from deep space exploration by the Vulcans, Captain Jonathan Archer takes command of the NX-01 Enterprise—Earth's first warp five starship.
Enterprise's mission is to return an injured Klingon, the first the human race has ever encountered, to his people. However, when a villainous race of aliens called the Suliban kidnap the Klingon, Archer and his crew must make an unexpected detour to Rigel X to retrieve their alien cargo and stave of an interstellar crisis.
After a decades-long journey to reach the Alpha Quadrant, Admiral Kathryn Janeway makes a bold decision to change the past in an attempt to undo the toll taken on the crew during their arduous journey home.
Voyager receives a distress call from a Hirogen training facility, where their holographic prey have become too cunning and dangerous for the hunters. Voyager establishes a tentative alliance with the Hirogen in order to disable the holograms, while the Doctor finds himself becoming sympathetic to their cause.
An older Kes returns to Voyager to take revenge on Janeway for taking her away from her homeworld too young. Using her telekinetic powers to travel through time, Kes intends to deliver Voyager to the Vidiians and "rescue" her younger self.