| Episode | Description |
|---|---|
| SHOCKWAVE, PART II | With Enterprise held hostage and Archer mysteriously missing, the crew faces its biggest challenge yet |
| CARBON CREEK | T'Pol's recollection of the Vulcans' first encounter with Humans conflicts with what Archer and Trip learned from history books |
| MINEFIELD | Enterprise becomes disabled by an alien orbital mine while trapped in hostile Romulan territory | DEAD STOP | Enterprise docks with a mysterious high-tech space station which proves too good to be true |
| A NIGHT IN SICKBAY | Archer spends a fretful night in sickbay with Porthos and Dr. Phlox |
| MARAUDERS | In need of fuel, Enterprise discovers a mining colony that is being controlled by Klingons who are bullying the inabitants and hoarding their supplies |
| SEVENTH, THE | T'Pol is is dispatched by the Vulcan High Command to capture a fugitive that has eluded their authorities for nearly two decades |
| COMMUNICATOR, THE | Reed and Archer retrieve a communicator left behind on an alien planet, but are captured in the process |
| SINGULARITY | On a "typical" day on Enterprise, the crew finds their routine tasks turn into uncharacteristically strange obsessions over trivial matters |
| VANISHING POINT | Following her first experience in the transporter, a series of eerie events leads Hoshi to question whether she is the same person |
| PRECIOUS CARGO | Trip rescues an exotic alien woman from her kidnappers, but ends up on an unexpected romantic adventure |
| CATWALK, THE | >When a deadly radioactive storm threatens Enterprise, the entire crew must take refuge for eight days in a small maintenance shaft |
| DAWN | Trip is fired upon by a territorial alien and forced to land on the night side of a moon |
| STIGMA | T'Pol's standing on Enterprise is threatened when it is learned that she has contracted a deadly disease |
| CEASE FIRE | When a military conflict erupts between the Vulcans and Andorians, Archer is brought in as negotiator |
| FUTURE TENSE | Enterprise finds a small craft adrift in space that contains what appears to be a human corpse, one the Suliban and the Tholians both try to retrieve |
| CANAMAR | Archer and Tucker are mistakenly arrested and placed on a prisoner transport vessel bound for the penal colony Canamar |
| THE CROSSING | Enterprise is swallowed by an otherworldly vessel occupied by noncorporeal creatures who seek to trade consciousnesses with the crew members |
| JUDGMENT | Archer stands accused before a Klingon tribunal of conspiring against the Empire, and faces a lifetime sentence on Rura Penthe |
| HORIZON | While Enterprise investigates a planetary phenomenon, Mayweather takes the opportunity to visit the cargo ship where he was born and raised. |
| THE BREACH | Enterprise is asked to evacuate a group of Denobulan geologists from a world that has been taken over by a militant faction. |
| COGENITOR | Enterprise encounters a race called the Vissians whose third sex of "cogenitors" are treated as second-class citizens |
| REGENERATION | An arctic research team discovers debris from an alien vessel, buried in a glacier along with the bodies of two cybernetically enhanced humanoids |
| FIRST FLIGHT | While Enterprise is investigating a nebula, Archer hears that A.G. Robinson, his old rival in the early days of the NX test program, has died |
| BOUNTY | A Tellarite bounty hunter captures Archer intending to turn him over to the Klingons for a substantial reward |
| THE EXPANSE | When a probe from an unknown alien source unleashes a devastating assault upon Earth, Enterprise is recalled, then sent to search for the perpetrators |