The New 52
In The New 52, DC Comics' relaunch of all of its monthly titles and the rebooting of the DC Universe continuity, Ocean Master's origins are once again revised. Unlike previous depictions of the character, Orm is cast as a full-blooded Atlantean and is initially characterized as having genuinely, brotherly love for Arthur and holds disdain towards "surface dwellers" for their acts that have polluted the oceans for thousands of years and prefers not sharing the Earth with them. Despite inclinations to attack the "surface dwellers" for perceived crimes towards the ocean, Orm instead rules for the benefit of his people and adheres to a code of conduct.
Orm was born as the second son of Queen Atlanna, making him the younger half-brother of Arthur Curry. After Atlanna has Arthur with a human male, Tom Curry, she gives up the child and allows him to raise their son. Atlanna is forced to return to Atlantis and to marry a member of her royal guard, with Orm the result of the union. As a child, Orm was told stories of terrors of humans ("surface dwellers") and how he had a half-brother on the surface. Saddened, he begged for the Atlantean guard to rescue him but was denied, inspiring him to take the throne to one day "rescue" his brother.
Twelve years later, Orm inherited the throne after mysterious circumstances after the deaths of his father and mother days apart, the former assumed to be killed by his enemies and the latter accused of being killed by Orm himself by royal advisor Nuidis Vulko. Failing to produce evidence, Vulko escapes and plots to overthrow Orm by placing Arthur on the throne. When Vulko is confronted by Arthur (who is searching for Atlantis), he explains his brother's origins and tells him that Arthur is the rightful heir of Atlantis's throne, and therefore, must overthrow Orm, whom he claims to be corrupt ruler.
When the brothers meet, Aquaman assumes the throne. However, he abdicates it to Orm once more to live out his life as Aquaman under the promise that Orm does not attack the surface.
Aquaman suspects Orm to be the Atlantean who hired Black Manta to steal Aquaman's scepter, which is an Atlantean relic of great power that was taken from the Dead King's tomb. When the Atlantean retrieves the relic, Aquaman believes Orm is in the Atlantean ship and demands that he reveal himself, but the Atlantean ship escapes. Later, Orm is visited by Aquaman to ask if he took the scepter, but Orm says that he did not, saying that if he wanted the relic scepter he would ask Aquaman for it.
During the 2012 "Throne of Atlantis" storyline, someone sabotages an aircraft carrier and provokes it into attacking Atlantis. Believing to be under attack from the surface, Orm leads Atlantean soldiers to invade the carrier and then wage war on the surface. Orm arrives in Boston, attacking seafarers and asking for his brother, Aquaman. Aquaman confronts Orm and attempts to talk sense to him, but they are interrupted by the Justice League without warning. Aquaman defends his brother, refusing to have him face extradition. Attacked on multiple fronts, Orm electrocutes then imprisons the Justice League within water cocoons. He sends the Justice League to the abyssal plain, while he attempts to sink the city of Boston. While Orm and his Atlantean soldiers plant bombs in an attempt to sink the city and face off against the superheroes that Cyborg called in as reserves, they are attacked by a race of sea creatures known as the Trench. After the Justice League escape from the abyssal plain, Aquaman realizes Orm is not using the relic scepter to sink the city. Since the Trench can only be commanded with the relic scepter, someone else must be using it to manipulate the Atlantean war. The mastermind is revealed to be Vulko. The Justice League arrive to battle both the Atlanteans and the Trench, while Aquaman attacks his brother and tries to convince him that Vulko is responsible for the Atlantean war. However, Orm refuses to listen, believing that Aquaman has been corrupted by the surface world. The Justice League manage to dispose of all the bomb detonators in Boston, but Orm tries to use his control helmet to summon a tidal wave. Mera's power turns the wave to hard water to stop it. Orm is defeated by Aquaman, who reclaims the throne and takes command of the deceived Atlantean soldiers. The Trench are returned home and Vulko is taken in for an Atlantean trial. However, Orm is remanded to Belle Reve for his crimes after abdicating the throne and losing political immunity in the process. As he is taken away, Aquaman apologizes to his brother.
Murk, a renegade Atlantean, makes plans to break Orm - now known by the media as the "Ocean Master" (a name he despises) - out of Belle Reve. While in prison, Orm is advised by his lawyer that he must plead guilty to the criminal charges against him. Murk and other Atlanteans arrive to free Orm, but return home when they receive a message that Atlantis is under attack.
During the 2013 "Forever Evil" storyline, Deathstorm and Power Ring invade Belle Reve, killing Orm's lawyer. During Belle Reve's prison break, Orm walks out to reclaim his Atlantean garb when a critically wounded prison officer begs for help; seeing that this officer was the only one who showed him any kindness, Orm kills him to end his suffering. He then runs into fellow escapees who are attacking a small-town diner, and whilst he is initially not bothered about confronting them, once they turn their attentions to him, he takes them out. A diner employee named Erin desperately pleads with Orm to save her young son Tommy, but he refuses, instead heading back to the ocean. However, he changes his mind, going back midway through his path to save him.
In the aftermath of the attack, Orm now lives with Erin and Tommy, entertaining the latter with stories of Atlantis. Suddenly, Orm is confronted by King Nereus from Xebel who has found the other four kingdoms. Nereus offers him the opportunity to join him to allow the kings of the Seven Seas to rule Earth once more.
Although Ocean Master did not appear, it is revealed that Orm was not responsible for his mother death; after Atlanna slew her husband for claiming to kill Arthur, she faked her death and abandoned Orm, leaving him to the inherit the throne. When Arthur met her and gave her an artifact that will allow Atlantis to officially recognize him as the true sovereign of Atlantis, she urged her elder son not to reveal her true whereabouts to Orm, intending to confront him herself when she is ready.