Aquaman [Arthur Curry; Orin]; King Shark; unidentified Ninth Tride gang members; Dolphin; Mera; unidentified Atlantean; Ondine; Reverend Mother Cetea; Tula (flashback); Justice League [The Flash [Barry Allen]; Cyborg [Victor Stone]; Superman [Clark Kent]; Batman [Bruce Wayne]; Wonder Woman [Diana of Themyscira]; Green Lantern [Jessica Cruz]; Green Lantern [Simon Baz]] (flashback); Jurok Byss; Vulko; unnamed members of The Undercurrent (Atlantean resistance group); Urcell; Magister Loke; unidentified members of the Silent School
Synopsis
Arthur discovers that Mera has penetrated the Crown of Thorns to enter Atlantis, but has become ill and is unable to breathe water. Reverend Mother Cetea helps treat Mera, but she must get to the surface within ten hours to recover or she will die. Reverend Mother Cetea also reveals that Mera has been chosen to be the new queen of Atlantis once Rath is overthrown. Mera and Arthur discuss how their happiness together must come second to her duty to Atlantis. Arthur leads the rebels on a mission to bring down the Crown of Thorns in order to get Mera to the surface so that she can survive.