When an unusual solar flare damages his space shuttle and causes astronaut Hank Henshaw and his crew--including his wife--to mutate, he blames Superman and as his surviving consciousness learns to fuse with technology he vows revenge.
The Joker hijacks a ship loaded with fireworks in a plan to lure Batman and Robin into a trap--will he finally succeed in destroying the Dynamic Duo, or will his plan fizzle?
Batman, Superman, Cyborg, the Flash, and the Green Lantern must battle Mr. Freeze when he encases Metropolis's central computer in ice and shuts down the city.