The Man of Steel springs into action when a bomb devastates the Metropolis Memorial Bridge, with his nemesis Lex Luthor fleeing the scene in a jet-powered suit. Clark Kent's investigation into the attack grows complicated when Lois Lane's helicopter arrives at the chaos, raising questions about whether she's in genuine danger or simply chasing a headline. As Superman takes to the skies to pursue Luthor and his operatives, he discovers that his enemy has deployed a trio of Kryptonite satellites designed to hunt him down—weapons capable of stripping away his superhuman strength and flight, leaving him vulnerable and grounded. Superman must stop Luthor's gang while evading the radioactive threat bearing down from above.