Vulcan!

Dr. Katalya Tremaine is a brilliant scientist, but behind her logical facade lies an irrational loathing: she hates Vulcans. So when she is paired with Spock on a mission to the planet Arachne, she deduces that the planet isn't big enough for both of them. It is a tense situation, made worse when the other members of the team are killed by insectoid natives. Spock and Tremaine are stranded alone on the planet - and utterly dependent on each other for survival.