Quick recap
Arthur Curry moves back to Amnesty Bay, his father's town, tired of being a punchline: to the public he's just the hero who talks to fish. With Mera, he tries to live a quiet life on land. Then starving creatures rise from an ocean abyss called the Trench and start carrying off coastal townspeople as food. Arthur and Mera dive into the depths to rescue the captives and find an entire colony of the creatures. In the end, Arthur saves the townspeople and seals the Trench, earns a little respect on land, and comes away with a hint that the creatures may share an ancient link with Atlantis.

