A man gets out of the elevator and into a speedboat. He wants it evacuated. Moments after she sits in a chair, he presses a button which sets off straps trapping her in. After changing his suit to proper scientist white attire and protective goggles he goes to his equipment. He turns a dial, flips a lever, and electric power is seen.
Electric power runs along the cables.
There are soon explosions and mass destruction in Manhattan with panic all over. They leave and are soon separated. He goes into a descending staircase alcove by an apartment building to change and is soon obscured by falling rubble. Superman removes the rubble, leaps into the air and comes down in the water. Following electricity on the cables he detaches some of them before boulders fall on him.