The 31st episode of the Star Trek prequel spinoff Enterprise premieres on UPN. This episode focuses on an early conflict with the Klingons. 
2001-05 UPN live-action Star Trek series, set in the 22nd century at least eight decades prior to Star Trek: Discovery or Star Trek: Strange New Worlds.
The 31st episode of the Star Trek prequel spinoff Enterprise premieres on UPN. This episode focuses on an early conflict with the Klingons.
The 32nd episode of the Star Trek prequel spinoff Enterprise premieres on UPN. Bruce Davison (X-Men) guest stars.
The 33rd episode of the Star Trek prequel spinoff Enterprise premieres on UPN.
The 34th episode of the Star Trek prequel spinoff Enterprise premieres on UPN.
The 35th episode of the Star Trek prequel spinoff Enterprise premieres on UPN.
The 36th episode of the Star Trek prequel spinoff Enterprise premieres on UPN.
The 37th episode of the Star Trek prequel spinoff Enterprise premieres on UPN.
The 38th episode of the Star Trek prequel spinoff Enterprise premieres on UPN.
The 39th episode of the Star Trek prequel spinoff Enterprise premieres on UPN.
The 40th episode of the Star Trek prequel spinoff Enterprise premieres on UPN. Jeffrey Combs, Suzie Plakson and Gary Graham guest star.
The 41st episode of the Star Trek prequel spinoff Enterprise premieres on UPN. This is the first episode of any Star Trek series since the original 1960s series to featuree the Tholians.
The 42nd episode of the Star Trek prequel spinoff Enterprise premieres on UPN.
The 43rd episode of the Star Trek prequel spinoff Enterprise premieres on UPN.
The 44th episode of the Star Trek prequel spinoff Enterprise premieres on UPN. J.G. Hertzler (Star Trek: Deep Space Nine) and John Vickery (Babylon 5) guest star.
The 45th episode of the Star Trek prequel spinoff Enterprise premieres on UPN.
The 46th episode of the Star Trek prequel spinoff Enterprise premieres on UPN.
The 47th episode of the Star Trek prequel spinoff Enterprise premieres on UPN. Andreas Katsulas (Babylon 5) guest stars in one of his final TV roles prior to his death.
The 48th episode of the Star Trek prequel spinoff Enterprise premieres on UPN. This episode marks Starfleet’s first chronological encounter with the Borg, though ironically, the Borg are left over from the events of the movie Star Trek: First Contact.
The 49th episode of the Star Trek prequel spinoff Enterprise airs on UPN. Keith Carradine (Deadwood) guest stars.
The 50th episode of the Star Trek prequel spinoff Enterprise airs on UPN. Jordan Lund and Robert O’Reilly guest star.
The 51st episode of the Star Trek prequel spinoff Enterprise premieres on UPN, ending the show’s second season with a setup for the third year, which will involve the Enterprise penetrating the territory of the Xindi, an unknown race that launched a deadly sneak attack on Earth. The show’s producers are consciously mirroring recent history, with the Xindi attack paralleling the 9/11 terrorist attacks.
The 52nd episode of the prequel spinoff Star Trek: Enterprise airs on UPN, adding “Star Trek” back to the title (after the network’s previous reluctance to obviously identify Enterprise as a Star Trek spinoff). Steven Culp and Daniel Dae Kim (Crusade, Lost) guest star.
The 53rd episode of the prequel spinoff Star Trek: Enterprise airs on UPN. Robert Rusler (Babylon 5) guest stars.
The 54th episode of the prequel spinoff Star Trek: Enterprise airs on UPN.
The 55th episode of the prequel spinoff Star Trek: Enterprise airs on UPN.
The 56th episode of the prequel spinoff Star Trek: Enterprise airs on UPN.
The 57th episode of the prequel spinoff Star Trek: Enterprise airs on UPN.
The 58th episode of the prequel spinoff Star Trek: Enterprise airs on UPN.
The 59th episode of the prequel spinoff Star Trek: Enterprise airs on UPN.
The 60th episode of the prequel spinoff Star Trek: Enterprise airs on UPN.