Rosemary Harper doesn't expect much when she joins the crew of the aging Wayfarer. While the patched-up ship has seen better days, it offers a bed, a chance to explore the galaxy, and some distance from her past. The crew is diverse: Sissix, the exotic reptilian pilot; chatty engineers Kizzy and Jenks who keep the ship running, and Ashby, the captain. They are offered a job tunneling wormholes through space to a distant planet. It's a lucrative job, but a host of unexpected mishaps force the crew to depend on each other.