First Season

The first season aired during the 2001-2002 television season.
Broken Bow
Archer volunteers to go where no human has gone before to return a Klingon to his home planet--over the objections of Earth's Vulcan allies, on the premiere of Enterprise airing Wednesday, September 26 (8:00-9:00 p.m., ET/PT) on UPN.
Fight or Flight
As they continue their deep space exploration, the NX-01 crew comes across an alien ship where they discover 15 humanoid corpses that seem to have been part of a scientific experiment. The horrific sight inspires Hoshi to panic and demand a return to Earth, but Archer insists on continuing the mission and finding out more about the abandoned dead. Trouble comes calling when the aliens that were conducting the gruesome experiments return and begin attacking Captain Archer and his team, on Enterprise airing Wednesday, October 3 (8:00-9:00 p.m., ET/PT) on UPN.
Strange New World
Trip, Mayweather, and T'Pol go on a research mission to a seemingly uninhabited Earth-like planet where they become infected with hallucinogenic flower pollen that sends their imaginations into a state of paranoid overdrive. When a violent storm strands them on the planet, Archer must find a way to save them before they turn dangerously on one another, on Enterprise airing Wednesday, October 10 (8:00-9:00 p.m., ET/PT) on UPN.
Unexpected
When Trip is dispatched to assist an alien ship with its power source problems, he is delighted to have a friendly encounter with one of the ship's female engineers. But after discovering that their special moment has resulted in his becoming pregnant, he realizes he's had an unwitting experience with alien sex. Now it's up to the Archer and the crew to return the rapidly growing alien baby to its mother, on Enterprise airing Wednesday, October 17 (8:00-9:00 p.m., ET/PT) on UPN.
Terra Nova
The Enterprise crew alters course to investigate the mystery of Terra Nova, a legendary Earth colony whose inhabitants mysteriously disappeared decades ago. But when they arrive, they confront descendents of the colonists who have become more alien than Archer could ever have imagined, on Enterprise airing Wednesday, October 24 (8:00-9:00 p.m., ET/PT) on UPN.
The Andorian Incident
The Enterprise crew pays a friendly visit to an ancient Vulcan spiritual sanctuary, despite T'Pol's concerns that her human colleagues will be an awkward and disruptive presence there. Upon landing, they discover that the monastery has been forcibly taken over by the Andorians, a paranoid and highly excitable race of aliens with a long history of conflict with the Vulcans. Archer soon discovers that the Enterprise crew has gotten in the middle of an interstellar Pandora's Box and now must find a way out, on Enterprise airing Wednesday, October 31 (8:00-9:00 p.m., ET/PT) on UPN.
Breaking the Ice
Trip learns that T'Pol is transmitting secret messages to a Vulcan ship, which has been shadowing Enterprise for weeks. Meanwhile, Archer must attempt a dangerous rescue to recover two crewman stranded on a rapidly disintegrating comet, on Enterprise airing Wednesday, November 7 (8:00-9:00 p.m., ET/PT) on UPN.
Civilization
Captain Archer and the crew discover a fully inhabited, civilized--though less advanced--Earth-like planet. Disguised to look like its inhabitants, they pay the planet an exploratory visit where they learn that a pernicious illness is afflicting the local population. As Archer seeks to help them find the malady's source, he finds himself in a close encounter with a comely female alien, on Enterprise airing Wednesday, November 14 (8:00-9:00 p.m., ET/PT) on UPN.
Fortunate Son
The Enterprise crew is dispatched by Starfleet Command to assist Fortunate, a human freight vessel that has been attacked by Nausicaan pirates. On arriving, they are surprised to find that Fortunate's crew is resistant to Archer's efforts to help them and determined to seek revenge against their attackers, no matter what the repercussions, on Enterprise airing Wednesday, November 21 (8:00-9:00 p.m., ET/PT) on UPN.
Cold Front
When the Enterprise comes in contact with an alien vessel transporting stargazers to observe a spectacular stellar event, Archer invites them aboard the ship not realizing that Silik, a Suliban enemy, is among them. Archer quickly realizes that Silik is engaged in a nefarious time-travelling mission and must stop him before he can tamper with the course of history, on Enterprise airing Wednesday, November 28 (8:00-9:00 p.m., ET/PT) on UPN.
Silent Enemy
When Enterprise is attacked by an unidentified enemy ship, the crew must work frantically to get their new phase cannons to operate. Meanwhile, Archer realizes that no one knows Reed well enough to give him a personalized birthday gift, on Enterprise airing Wednesday, January 16 (8:00-9:00 p.m., ET/PT) on UPN.
Dear Doctor
"The crew encounters an alien race in desperate need of medical and scientific assistance. Phlox declines to assist them because of his ethical beliefs, leaving Archer to decide whether to help them find their own solutions, on Enterprise airing Wednesday, January 23, 2001 (8:00-9:00 p.m., ET/PT) on UPN.
Sleeping Dogs
When Enterprise comes across a wounded Klingon vessel, T'Pol, Hoshi, and Reed take a shuttle pod down to investigate. There they are ambushed by a hostile female Klingon who hijacks the shuttle pod, leaving the Enterprise crewmembers dangerously stranded on the Klingon vessel. Now it's up to Archer to take the Klingon under guard and enlist her help in rescuing his crew, on Enterprise airing Wednesday, January 30 (8:00-9:00 p.m., ET/PT) on UPN.
Shadows of P'Jem
Archer and the crew are disappointed to discover that T'Pol has been ordered by the Vulcan High Command to leave the 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 and find themselves once again at the mercy of the volatile Andorians, on Enterprise airing Wednesday, February 6 (8:00-9:00 p.m., ET/PT) on UPN.
Shuttlepod One
On a routine shuttlepod mission to investigate an asteroid field, Trip and Reed find themselves suddenly cut off from the Enterprise and become convinced that the mothership has been destroyed. With a limited oxygen supply and almost no chance of being rescued, the opposite-minded twosome must battle their annoyance with one another while also coming to terms with their impending demise, on Enterprise airing Wednesday, February 13 (8:00-9:00 p.m., ET/PT) on UPN.
Fusion
Renegade Vulcans... Romulans?
(Former title: "Equilibrium")
Rogue Planet
Shore leave on Eska homeworld