"Tomorrow is Yesterday," Ep. 21 - The U.S.S. Enterprise is sent back to the 20th century by a black star, where it is sighted by the Air Force as a U.F.O. Kirk is forced to beam the Air Force's jet pilot aboard. Now he must somehow manage to return to the future without changing history. "The Return of the Archons," Ep. 22 - The U.S.S. Enterprise finds a planet of blissful people ruled by a computer called Landru. The computer now wants to destroy the U.S.S. Enterprise … mehrin order to protect what it believes to be its perfect society. weniger