The fifth movie of the original motion picture saga comes to 4K UHD with HDR-10 and Dolby Vision, boldly remastered from the original film elements. The crew of the Federation starship Enterprise is summoned to Nimbus III to negotiate a kidnapping from a renegade Vulcan, who turns out to be a relative of Spock. Soon, they're set on a course for the center of the galaxy, exploring his obsessive search for a mysterious planet that could quite possibly be the source of all life.Commentary By: Michael & Denise Okuda, Judith & Garfield Reeves-Stevens and Daren DochtermanCommentary By: William Shatner & Liz ShatnerBlu-ray Exclusives:Library ComputerStar Trek Honors NASAStarfleet Academy: Nimbus IIIPlus Over 2 More Hours Of Additional Special Features