William Shatner shuttles between captain's console and director's chair for this fifth entry in the long-running series, as Spock (Leonard Nimoy) finds his loyalties tested when his rebel half-brother (Laurence Luckinbill) hijacks the Enterprise and her crew for their most dangerous voyage yet...to the heart of creation itself. Find out what God needs with a starship in this charming, exciting 23rd-century outer space epic! DeForest Kelley, David Warner co-star. 106 min. Widescreen; Soundtracks: English Dolby TrueHD 7.1, French Dolby Digital 5.1, Spanish Dolby Digital mono; Subtitles: English (SDH), French, Portuguese, Spanish; audio commentary; featurettes; more.