Titan: The largest moon of Saturn. A deadly enigma harboring the greatest secret in the history of humankind.

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 does not hold all the 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.