The adventures of Earth's first interstellar spaceship are chronicled in this 'Star Trek' spin-off, which takes place in 2151 (a century before Capt. Kirk). It follows Capt. Jonathan Archer and his crew as they explore the galaxy and, later, pursue aliens who launched a devastating attack on Earth. The series was originally called simply 'Enterprise,' then changed to 'Star Trek: Enterprise' in its third season.