It's the 23rd century, and a mysterious alien power is threatening Earth by evaporating the oceans and destroying the atmosphere. In a frantic attempt to save mankind, Kirk and his crew must time travel back to 1986 San Francisco where … William Shatner, Leonard Nimoy, DeForest Kelley, Catherine Hicks, James Doohan, George Takei, Walter Koenig Added on HBO 2022-11-03. Youtube Trailer