In Aquaman 3, Jason Momoa returns as Arthur Curry, the king torn between two worlds, facing his greatest threat yet: a vengeful force rising from the Mariana Trench. As strange tremors disrupt the ocean’s balance, Aquaman discovers that an ancient leviathan, imprisoned for millennia, has awakened, threatening to flood the surface world in retaliation. The film delves into Atlantean mythology as Arthur must unite the seven underwater kingdoms, each with their own agendas, to form a fragile alliance.

Amber Heard reprises her role as Mera, now the Queen of Atlantis, who stands by Arthur’s side as both a warrior and a diplomat. Their bond is tested as politics, betrayal, and ancient curses unfold. Meanwhile, Black Manta (Yahya Abdul-Mateen II), equipped with new alien technology, takes advantage of the chaos to attack Atlantis once again. With stunning underwater visuals, epic naval battles, and emotional stakes, Aquaman 3 delivers a high-stakes, mythic finale that cements Arthur’s legacy as king and hero.