Now with the all Mother Boxes in his procession. Steppenwolf decided that it was time to seal the Earth's fate via destroying it like he did in the past with several other planets under the orders of Darkseid's Elite. Steppenwolf and his Parademons went to Russia and once there, they decided to use a nuclear plant as their base of operations.
Superman meanwhile headed to the nuclear facility in Russia, where he encountered Steppenwolf and begin aiding the league against him and his parademons. He also aided the Flash in clearing any nearby civilians and in his case, he lifted an entire building full of them to safety. Returning back to the nuclear facility, Superman began attacking Steppenwolf again, then aiding Cyborg in the separation of all three mother boxes.
Though hit by the blowback it caused, Superman and Cyborg were alright and the man of steel came to the aid of the others as they continued against Steppenwolf. Wonder Woman went in to strike the new god and Superman utilized his arctic breath to Steppenwolf's weapon cold and brittle, enough so for Wonder Women to destroy his weapon. Steppenwolf, now trembling in fear, was swamped by his own Parademons and escaped through a Boom Tube.
To be added