Star Trek V - The Final Frontier

Fifth big-screen outing for the crew of the Starship Enterprise. Kirk (William Shatner), McCoy (DeForest Kelley) and Spock (Leonard Nimoy)'s shore leave is cut short when the latter's half-brother - Vulcan renegade Sybok (Laurence Luckinbill) - takes several important ambassadors hostage on the planet Nimbus. They race to the rescue, unaware that the kidnap is all part of Sybok's ploy to hijack the Enterprise and set out on a quest to discover the Supreme Being.