Pilot-in-training Matt Cruse and Kate de Vries, expert on high-altitude life-forms, are invited aboard the Starclimber, a vessel that literally climbs its way into the cosmos. Before they even set foot aboard the ship, catastrophe strikes: Kate announces she is engaged - and not to Matt. Despite this bombshell, Matt and Kate embark on their journey into space, but soon the ship is surrounded by strange and unsettling life-forms, and the crew is forced to combat devastating mechanical failure. For Matt, Kate, and the entire crew of the Starclimber, what began as an exciting race to the stars has now turned into a battle to save their lives.