Someone is trying to kill Dr. Sydney Lomax. The award-winning jeweler and inventor accepts a special assignment from Dro Reyes: transport his custom-made wedding rings across a lake of fire. But neither is aware that the job involves mortal danger. Sydney’s enemies are determined to succeed, since her mission across the sands of Durabia threatens their secret munitions dump—where a Doomsday Bomb is silently ticking.

Ethan Wakefield, tasked with finding the government’s covert facility that’s filled with Sydney’s inventions, is assigned to protect yet use her. He must locate her tech, which could save or destroy countless lives, before time runs out. But lines get quickly blurred, and now Ethan and Sydney’s newfound love is also at risk of destruction in a deadly game of cat and mouse.

As time winds down, Ethan does everything in his power to bring Sydney home alive—but this time, even his best effort might not be good enough.