While on patrol in the Atlantic, the entire crew of the nuclear submarine USS California is killed by an unknown attacker. At S.T.A.R. Labs, the Justice League’s headquarters, Cyborg is given the news by Colonel Steve Trevor. He teleports to the sub via a Boom tube, finds hand prints on the hull and discovers that nuclear missiles are missing. Cyborg, Flash, Shazam, Superman, Wonder Woman, Green Lantern, and Batman inspect the recovered California. Diana identifies the enemy as warriors from Atlantis, beings turned into underwater creatures by their king’s mystical trident. Superman and Batman decide to meet Atlantis-expert Stephen Shin.Justice League: Throne of Atlantis 2015 Download.
In Atlantis, Prince Orm and Black Manta meet with Orm’s mother, Queen Atlanna, where they argue over declaring war on the humans. Orm blames the Justice League for his father’s death, while Queen Atlanna blames Darkseid[N 1]. Orm wishes to attack first, but Atlanna silences him and asks Mera to bring Arthur Curry (her other son) to Atlantis. Black Manta uses a craft disguised as a US Navy submarine to attack Atlantis using the stolen missiles to frame the humans. Batman and Superman locate Shin’s home and his destroyed research. Superman finds a photograph of Curry and a letter revealing Arthur is half-Atlantean. Shin meets Arthur but he is killed by Atlantean soldiers sent by Black Manta. Arthur is blasted out of his collapsing house; Mera saves him and dispatches the soldiers using her hydrokinetic powers.
Citizens of Atlantis and Orm demand war following the attack on Atlantis, though Atlanna disagrees. Arthur wakes up with gills on his neck in underwater Atlantean ruins. Mera explains that Atlanna is his mother, though as a royal, Atlanna could not be with his father or Arthur. Now, Atlanna believes Arthur can help bridge the gap between the two worlds. Mera dresses him in the king’s royal garb, though Arthur leaves wearing only the orange and green Atlantean bodysuit.