Titan. Sixth moon of Saturn. A deadly enigma harboring the greatest secret humanity has ever faced.
In the wake of the first mission, two companies with very different goals plot a return to that distant moon. Their ships are safer, their technology has improved...and they want answers. The competition triggers a new space race that will push the crews to the very edge of survival.
Yet Titan is not the only world with secrets.
On Earth, a startling ocean discovery reveals that whatever created the alien artifacts has been to our planet before...and it’s coming back.