High Quality Content by WIKIPEDIA articles! Star Trek: Phase II was a planned television series based on the characters of Gene Roddenberry`s Star Trek, which had run from 1966 to 1969. It was set to air in early 1978 on a proposed Paramount Television Service (a forerunner to UPN). The series was to follow the adventures of the Enterprise crew on a second five-year mission, and be a continuation of the Star Trek franchise.