The Great Multiverse Holiday Special is a movie set in the multiverse. The main storyline of the film transpires on Vulcan. Spock and 20 allied heroes visit the planet to celebrate the Vulcan holiday Life Day with his family. As Spock is an known allied member, they are pursued by the Axis of Empires, who in the process invade Spock's household. The plot is strung together by a series of musical numbers, celebrity appearances, and other variety-show acts, including songs and comedy routines by actors such as Chris Hemsworth, Bella Thorne, Chris Pine, Jonathan Frakes, and Bea Arthur.