Justice league

Thousands of years ago, the Steppenwolf and the Parademons, attempted to destroy the Earth's ecosystem by using the unity of the three Mother Boxes, and then transformed it into a scene of the wilderness of the Steppenwolf. His evil plan was eventually defeated by the collaboration of the Olympian Gods, the Amazons, the Atlantis, the human beings, and the Green Lantern Corps. The Steppenwolf was forced to evacuate the Earth. In modern times, the world has not yet emerged from the shadow of Superman's death. The crime rate in cities such as Gotham and Metropolis has risen sharply, which has not only caused the three Mother Boxes to restart themselves, but even allowed the Steppenwolf to reappear on the earth and decided to implement the conquest plan again.
The Steppenwolf broke into the Themyscira and took away the Mother Box kept by the Amazon, forcing the Queen to ignite the flame to warn her daughter, Diana, who was living in human beings’ world. After Diana joined the superhuman team, Bruce went to find two of Rex Luthor’s notes, Arthur Curry and Berry Allen. When Arthur refused to participate in the war, Berry promised to join Bruce's camp. Diana personally met Victor Stone, he refused to participate in the war but agreed to help them trace the location of the Steppenwolf. However, soon, the Parademons captured all the scientists and employees of the Metropolitan Star Lab and tried to torture the location of the Mother Box. James Gordon summoned Batman and other heroes through the bat signal.
Batman(a number of Justice League ) led the team to the abandoned water pipes in the underground of Gotham Harbor, where the Steppenwolf might hide. Though they succeeded in saving all the kidnapped Silas and other employees, the Steppenwolf destroyed the pipeline and caused the facilities to flood. Bruce decided to take the risk of using the Mother Box technology to resurrect Superman because they couldn't match the mighty Weiny Wolf Legion. Diana and Arthur strongly opposed this, but Bruce claimed that he has prepared the"respond measures" to prevent Superman from becoming a wicked resurrection. Berry and Victor dug up the body of Clark Kent and brought it back to the comet reconnaissance ship. Through Berry's Speed Force, he provided a lot of lightning energy, and The superman was successfully resurrected in a moment when the Mother Box touched the water.
Soon after Superman's resurrection, due to severe amnesia, and Victor's mechanical body automatic counter-attack against him, superman began to attack Batman and other people. The Steppenwolf took the third Mother Box and took a ruined nuclear power plant in the village of northern Russia to unify the mother box. It was learned that Superman might not show up, so all the heroes were determined to come to the village against the hordes of the Parademons. When Batman drove the Batmobile to sound a loud alarm to disturb and lead the Parademons, others came to the nuclear power plant against the Steppenwolf, but still could not get enough time for Victor to separate the Mother Box.
Superman eventually returned and forced the retreat to the Steppenwolf. Victor successfully separated the three Mother Box, and the Justice League successfully defeated the Steppenwolf, making it the first time of feeling fear, and letting the Parademons who was squandering the fear of life collectively attacked the Steppenwolf until they were collectively evacuated from the Earth by the blasting pipe. The Mother Boxes were recycled and placed back in their respective locations, and heroes such as Superman improved their lives through this action. 
Later, Rex Luthor succeeded in escaping from the Akahan Psychiatric Hospital and learned that Superman was resurrected and established the Justice League. Then he summoned Slade Wilson to form his alliance.