The U.S.S. Enterprise crew comes face-to-face with their demons – and scary monsters too – when their landing party is stranded on a barren planet with a ravenous enemy.

A distress call from Lt. Noonien-Singh compels Spock to disobey orders and take the U.S.S. Enterprise and its crew into disputed space, risking renewed hostilities with the Klingons in a bid to aid their shipmate.