William Shatner, Leonard Nimoy and DeForest Kelley return to star in this sci-fi adventure sequel based on the 1960s TV series. Admiral James T. Kirk (Shatner) disregards Starfleet orders and steals the USS Enterprise to undertake a mission to find the body of Spock (Nimoy). However, during their voyage the crew, including Dr McCoy (Kelley), who appears to have absorbed part of Spocks spirit, are impeded by marauding Klingons commanded by Kruge (Christopher Lloyd), who are plotting to steal the secrets of the Genesis Device. The cast also includes James Doohan, Walter Koenig, George Takei and Nichelle Nichols.