Superman script: an adventure where Superman foils a conspiracy to kidnap a star football player. The extended script mentions that Clark wears a special "uniform" when assuming the identity of Superman, but it is not described. Keaton produced two weeks' worth of strips based on Siegel's script. In November, Keaton showed his strips to a newspaper syndicate, but they were rejected, and he abandoned the project. Siegel and Shuster reconciled and resumed developing Superman together. The character became an alien from the planet Krypton. Shuster designed the now-familiar costume: tights with an "S" on the chest, over-shorts, and a cape. They
Superman: Secret Origin an enemy. Superman leaves anyway, and Sam orders the Army to attack. The soldiers do little to Superman, but John, in the Metallo suit, manages to weaken him by exposing him to the kryptonite. Ricocheting bullets hit the kryptonite, which explodes and injures John and allows Superman to escape. Sam and his troops arrive at the "Daily Planet", and orders it shut down until they can get definitive answers about Superman. Lex takes John into surgery and replaces his heart with a kryptonite generator, turning him into Metallo. Sam reveals to Lois, Perry, and the "Daily Planet" staff that Superman