The Man of Steel battles a trio of super-powered Kryptonian do-badders who invaded earth. The result? A startling plot twist that ties in with Superman's past. And a duel above Metropolis that is a special-effects fan's dream come true: buses hurtle airborne through the city's steel and glass canyons, pedestrians blow like confetti along sidewalks and huge electronic billboards explode in an eyedazzling shower of sparks.