The first act of the Justice League focuses on Batman trying unite the team. Only Flash, who is a Batman fan,officially joins the team. Later, Batman, Flash and Wonder Woman go to Atlantis to recruit Aquaman with Mera. Orm is very hostile and attacks Diana, Batman and Flash with some guards but Aquaman stops the fight.
At the beginning of the film, Bruce poses as an interested investor for STAR Labs and tries to hack into the files to learn more about Victor while Silas gives him a tour of the facility which includes a machine that holds a miniature sun but is blocked by Victor himself. This leads to a flashback scene of Victor's origin.
Darkseid's army is lead by his General Steppenwolf along with Kanto, Granny Goodness and The Furies. We will see Apokolips in this film before Darkseid launches his attack on Earth. Deesad also has a small cameo. Darkseid's look is inspired by his Darkseid War look with a combination of his classic look. He will be around 9 feet tall. At the end of the first act, Darkseid launches his first attack on Earth. His army of Parademons attack several major countries. Steppenwolf along with Kanto leads an assault on Atlantis that leads to Queen Atlanna's death (who is actually stabbed by Orm with one of the Parademons' weapons and blames them) and the death of hundreds of Atlanteans. The Furies and Granny Goodness attack the White House. Victor starts to lose control to the Mother Box in his systems but manages to calm himself only to see Silas die. Darkseid then appears and destroys Coast City with his Omega Beams. A Green Light shines in the middle of space. An enraged Hal Jordan makes his way to Earth.
Batman, Flash and Wonder Woman try to take the fight to Darkseid but are overwhelmed even after Aquaman and Mera join. Hal Jordan shows up and attacks Darkseid only to get his arm broken. The team is about to be executed when they are teleported by Cyborg.
Bruce tells the team that Darkseid's army is attacking major cities first and they need a place to regroup. Bruce and the team go to the Kent farm and come up with a plan that involves Cyborg reversing the Boom Tubes and teleporting the armies back to Apokolips but the plan is a long shot because Victor can't fully control his abilities and is suicide. Aquaman and Green Lantern are also driven by revenge tell Cyborg to teleport them back to the battle. Bruce eventually visits Clark's grave and talks about how he still failed him in the end. Cyborg shows up and talks to Bruce but says someone else is with them as his systems pick up a third heartbeat only to realize is coming from Superman's grave. The teams digs up the body only to see Clark hasn't decomposed and has grown hair. They formulate a plan to dip Clark's body in the miniature sun at STAR Labs in hopes that it could fully recover Superman.
Cyborg eventually teleport the team to STAR Labs but is swarmed by Parademons. Eventually Darkseid is informed of Superman and sends his Parademons to the location. The team manages to throw Superman into the miniature sun and he recovers and dismantles all the Parademons in the lab. Superman then adresses the world thanks to Cyborg and challenges Darkseid and his army to meet the Justice League at Coast City.
The team fights Darkseid and his elite. Mera and Wonder Woman kill Granny Goodness, Stompa and severely incapacitate the other Furies. Aquaman beats Steppenwolf but Parademons get in his way and prevent him from killing him, Flash beats Kanto and Superman, Green Lantern, Cyborg and Batman take the fight to Parademons. Darkseid then takes the battle to them and beats them to a pulp but is eventually barely defeated by Superman. Darkseid leaves with his army and vows revenge for the humiliation that he suffered at the hands of Superman and the Justice League.
