A billion-dollar icy female CEO, cornered by a Wall Street tycoon forcing her into marriage, ends up hiring a "lowly mechanic" with a daughter as her contract husband. The villains humiliate him relentlessly, his own brother steps on him, and everyone believes he is nothing more than a helpless ant. But no one knows that this grease-stained single father is the supreme commander who controls the world's lifelines and strikes fear into military forces worldwide—the "Dark Lord." When the crazed enemies aim their guns at his wife and daughter, the war god's forbidden scale is touched. The mechanic sheds his disguise, makes one phone call to mobilize the three global conglomerates, and a nuclear-powered fleet sweeps the skies. "Touch my family? Pay with your lives!" When the once-lofty enemies become prisoners, they realize in despair that the tyrant seated on the black throne is the very "worthless" man they despised most.
