John Henry Irons, an ex-employee of LexCorp, has lately been developing a new, advanced suit for himself. When Superman is caught off guard from the reappearance of Metallo, Irons must suit-up as Steel to help the Man of Steel.

Bruno Mannheim and Intergang have returned to Earth, but their antics are only a prelude to Darkseid's all-out assault on Earth and Superman. The courageous officer Dan Turpin helps Superman fight off swarms of Apokolips' demons. They limp on until a warrior from New Genesis, named Orion, arrives to assist them in the war. Orion, who is badly hurt is taken to STAR Labs for medical attention. Orion recovers quickly and explains the essential facts of the history between the two worlds and that Darkseid seeks to dominate Earth. Soon enough, Darkseid's forces arrive and stage an attack on an air force base which is repelled by Superman, Orion and the SCU.