Gemme is a hi-tech matchmaker who pairs the next generation of Lifers aboard the Expedition, a deep space transport vessel destined for Paradise 18. When the identity of her lifemate pops up on her screen, she's shocked that he's the achingly gorgeous and highly sought after Lieutenant Miles Brentwood, a man oblivious to her existence. Believing everyone will think she contrived the match, she erases it from the computer's memory. Just as comets pummel the ship and destroy the pairing system forever. With the Expedition disabled, the colonists must crash land on the barren ice world of Tundra 37 where Gemme is reassigned to an exploratory mission, led by Lieutenant Brentwood. Only in the frozen tundra does she understand the shape of his heart and why the computer has entwined their destinies.