ENT Season 2 Episode 4 Dead Stop

Plot

Four days after getting caught in a Minefield, Captain Archer and Commander Tucker inspect the damage to the ship. As the damage would take months to repairs, and returning to Jupiter Station would take years, Archer decides that it is time for someone to help them out for once, and orders Ensign Sato to send a general distress call. A passing Tellarite freighter responds, and sends a barely understandable message including co-ordinates directing them to an automated repair facility, three days away at Warp 2.
Arriving at the facility, the ship is scanned and the station reconfigures itself to suit the crew's needs. Enterprise docks, and the station sets the full repair price at 200 liters of warp plasma. Using its advanced replication technology, the station can complete all repairs in just 34.2 hours. Archer, left without any other option, agrees, although he has a gut feeling that not everything is as it appears. Intrigued by the station's technology, Tucker convinces Reed to visit the station's computer, but their attempt to do so is detected, and they are beamed back to the Enterprise's bridge.
Meanwhile, a false comm message, ostensibly from Archer, directs Ensign Mayweather to an area currently being repaired. His body is found soon after, an apparent victim of an electrical shock. When Doctor Phlox discovers that the dead Mayweather is a well-replicated duplicate, Archer resolves to search the station for him. Tucker then 'distracts' the computer, and Reed again trips the alarm, giving Sub-Commander T'Pol and Archer time to enter a computer room filled with bodies — among which are a Klingon, a Vulcan, and a Cardassian — apparently the station's method of augmenting its own processing power. Mayweather is rescued just as the station starts attacking Enterprise in retaliation. Archer then detonates the warp-plasma payment to blow up the station and escape. As the ship warps away the few active components of the station begin repairing the damage.