Star Trek: Enterprise is a science fiction television series. It follows the adventures of humanity's first warp

Warp drive (Star Trek)

Warp drive is a faster-than-light propulsion system in the setting of many science fiction works, most notably Star Trek. A spacecraft equipped with a warp drive may travel at velocities greater than that of light by many orders of magnitude, while circumventing the relativistic problem of time...

 5 starship, the Enterprise

Enterprise (NX-01)

The Enterprise is a fictional starship in the science fiction television series Star Trek: Enterprise. It is commanded by Captain Jonathan Archer.-History:...

, ten years before the United Federation of Planets

United Federation of Planets

The United Federation of Planets, also known as "The Federation" is a fictional interplanetary federal republic depicted in the Star Trek television series and motion pictures...

 shown in previous Star Trek series was formed.

Enterprise premiered on September 26, 2001. The pilot episode, "Broken Bow", takes place in the year 2151, halfway between the 21st-century events shown in the movie Star Trek: First Contact

Star Trek: First Contact

Star Trek: First Contact is the eighth feature film in the Star Trek science fiction franchise, released in November 1996, by Paramount Pictures. First Contact is the first film in the franchise to feature no cast members from the original Star Trek television series of the 1960s...

 and the original Star Trek

Star Trek: The Original Series

Star Trek is an American science fiction television series created by Gene Roddenberry, produced by Desilu Productions . Star Trek was telecast on NBC from September 8, 1966, through June 3, 1969...

 television series.