Energy executive Lynn Dayton thinks her challenge is fixing the troubled Houston refinery her company has just bought. But soon she must save it, and other refineries, from the havoc and deaths directed by a French saboteur, simultaneously fighting off threats to her own life. As Lynn deals with chemical leaks, disloyal employees, a new season of hurricanes, and mounting casualties, Robert Guillard, a corrupted idealist, tries to manipulate her through her vulnerable sister. Can Lynn save her sister, her thousands of colleagues, and herself?