The Rift

Every thirty-three years, a rift in space connects the Federation with a mysterious race called the Calligar who live on a planet hundreds of light years away -- much too far to travel in a Starship. Captain Kirk and the U.S.S. Enterprise™ are dispatched to transport a Federation delegation of diplomats, scholars and scientists who will travel to Calligar directly during the brief period of time that the rift will be open.