Carbon Creek: On the first anniversary of her assignment to Enterprise, T'Pol tells Archer and Trip about the first contact between humans and Vulcans. (S2, ep 2) [S]
Shockwave Part II: Stranded in the 31st century, Captain Archer and temporal agent Daniels investigate the damage to the timeline and try to find a way home. (S2, ep 1) [S]
Two Days And Two Nights: This week, Archer, Trip and Reed all have mysterious encounters with females who may not be all they appear. Meanwhile, Hoshi learns a new language. (S1, ep 25) [S]
Desert Crossing: Archer and Trip are invited to a desert-like planet by an alien leader, but discover he is a terrorist who has lured them there under false pretences. (S1, ep 24) [S]
Fallen Hero: When a Vulcan ambassador is accused of secretive criminal misconduct, Enterprise is asked to transport her back to the Vulcans. Trouble ensues. (S1, ep 23) [S]
Vox Sola: An alien invades the Enterprise, ensnaring the crew in its web and feeding off them for survival. Can Hoshi communicate with the creature before it's too late? (S1, ep 22) [S]
Detained: Archer and Mayweather enter a 'military zone' and are imprisoned by an alien race called Tandarans, who are at war with the Suliban. (S1, ep 21) [S]
Oasis: While exploring a crashed vessel, the Enterprise crew is haunted by some ghostly figures, and encounters an alien race which has survived despite insurmountable odds. (S1, ep 20) [S]
Acquisition: When the Ferengi, a group of intergalactic thieves, stun the Enterprise crew and try to rob the ship, it's up to Trip to work covertly to stop them. (S1, ep 19) [S]
Fusion: A group of atypical Vulcans visiting Enterprise subject T'Pol to uncomfortable new ideas, with one in particular urging her to release her own 'primal nature'. (S1, ep 17) [S]
Shuttlepod One: When Trip and Reed find themselves cut off from the Enterprise with no hope of rescue, they must overcome their differences to face their impending demise. (S1. ep 16) [S]
Shadows Of P'jem: The crew are disappointed to learn that T'Pol has been ordered to leave the Enterprise, even more so when they see her own indifference to leaving. (S1, ep 15) [S]
Sleeping Dogs: When the crew enter a wounded Klingon vessel, they are ambushed by a Klingon and left stranded on the sinking ship with Archer their only hope for survival. (S1, ep 14) [S]
Silent Enemy: Attacked by an unidentified enemy ship, the crew struggles to get their new phase cannons operational. Meanwhile, Archer endeavours to give Reed a happy birthday. (S1, ep 12) [S]
Civilization: On an Earth-like planet, Archer helps a primitive scientist to work out what is killing the townspeople - and he has his first kiss with an alien. (S1, ep 9) [S]
Breaking The Ice: Trip learns that T'Pol has been transmitting secret messages to a nearby Vulcan ship, and Archer attempts to save two crewmen from a disintegrating comet. (S1, ep 8) [S]
The Andorian Incident: Archer and his crew encounter hostile, paranoid aliens when they visit a Vulcan monastery and discover it has been taken over by the Andorians. (S1, ep 7) [S]
Terra Nova: The crew investigate Terra Nova, a mysterious human colony in outer space, but when they arrive they find the inhabitants have evolved far beyond human parameters. [S]
Unexpected: After sharing a friendly moment with the female engineers of an alien ship, Trip discovers that he's just had his first experience with alien sex and is now pregnant! [S]
Strange New World: On an Earth-like planet, the crew become infected with powerful hallucinogens. Can Archer save them before the ensuing paranoia causes a tragedy? [S]
Broken Bow, Part 2: Enterprise is on its first deep space mission when the Suliban kidnap the Klingon they are transporting, forcing Archer to make a detour. [S]
Broken Bow, Part 1: During the first ever episode, the Enterprise crew sets out on its maiden voyage with a mission to return a wounded Klingon to his people. [S]
These Are the Voyages: In 2370, Commander William T Riker is trying to clear his mind and relives the last mission of the first Enterprise on the holodeck. Series finale. (S4, ep 22) [S]
Terra Prime: Paxton threatens to destroy Starfleet HQ if all aliens refuse to leave Earth. Enterprise jump into action to shut down the verteron array on Mars. (S4, ep 21) [S]
Demons: While attending a conference on a proposed interplanetary alliance, Trip and T'Pol find out from a dying woman that they have a baby. (S4, ep 20) [S]
In a Mirror, Darkly Part 2: The Mirror Universe saga concludes as Archer declares himself captain of a starship from the future, while his alien crew launch a rebellion. (S4, ep 19) [S]
In a Mirror, Darkly Part 1: Set in the dark and oppressive Mirror Universe, Commander Archer leads a mutiny in a bold attempt to seize control of an advanced starship. (S4, ep 18) [S]
Divergence: While Enterprise tries to bring Trip on board to reverse the Klingon modifications, Phlox and Antaak find a cure for the virus that will not please General K'Vagh. (S4, ep 16) [S]
Affliction: While Enterprise is visiting Earth, Phlox is abducted by the Klingons and forced to research a cure for a virus destined to wipe out the human race. (S4, ep 15) [S]
Babel One: Enterprise supervises peace talks between the Tellarites and the Andorians. But when they are attacked, Archer must prove who is responsible. (S4, ep 12) [S]
Observer Effect: Noncorporeal aliens inhabit the bodies of Enterprise crew members to study how they react to a lethal infection that has affected Trip and Hoshi. (S4, ep 11) [S]
Awakening: Archer and T'Pol encounter the Syrrannites, a radical group hiding in the Vulcan desert, while the NX-01 crew contends with Vulcan power ploys. (S4, ep 8) [S]
The Forge: Earth's embassy on Vulcan is bombed, and the ensuing investigation puts Archer and T'Pol on the trail of a Vulcan religious faction hiding in a treacherous desert. (S4, ep 7) [S]
Cold Station 12: Arik Soong leads his band of Augments to a medical facility where hundreds of genetically enhanced embryos are still stored. Is he about to revive them? (S4, ep 5) [S]
Borderland: When genetic supermen left over from the Eugenics Wars hijack a Klingon ship, Archer must rely on their creator, the criminal Arik Soong, to hunt them down. (S4, ep 4) [S]
Home: The crew receive a heroes' welcome after returning to Earth following their year-long mission in the Delphic Expanse. Back on home turf, they take stock in different ways. (S4, ep 3) [S]
Storm Front, Part 2: As the Nazi invasion of the US continues in an altered 1944, Archer and his crew map out their strategy to stop Vosk from building a dangerous time machine. (S4, ep 2) [S]
Storm Front: The crew find themselves trapped in an alternative 1944 - where the Allied forces are losing WWII and the Nazis have invaded the USA. (S4, ep 1) [S]
The Council: As T'Pol and Reed go on a harrowing mission into one of the mysterious metallic Spheres, Archer and Hoshi approach the Xindi Council hoping to make peace. (S3, ep 22) [S]
Azali Prime: Archer decides he should pilot a kamikaze shuttle to destroy the Xindi weapon. Temporal agent Daniels urges him to reconsider. (S3, ep 18) [S]