As if being kidnapped by aliens isn't bad enough, Jessie Wyndom discovers they grabbed her by mistake. She wise cracks past her fear especially when she learns she was part of an experiment separating Terran twins before birth. Her twin just took Jessie's place back in Ann Arbor, Michigan while she gets to twiddle her thumbs on an Alliance of Planets starship. The only good part is the hunky captain. Except. He's so unemotional he could be Mr. Spock's double.

Captain Marcus Viator's well-organized life is turned upside down by the free-spirited female from Earth. Problems with the starship prevent him from returning her to her home. Fate brings them together. Treachery tears them apart. Is their love strong enough to reunite them?