Sub-Mariner [Namor]; Namorita; Tamara; Amphibians [Henry Croft; Dr. Jennings]; Triton (flashback); Fantastic Four [Mr. Fantastic [Reed Richards]; the Thing [Ben Grimm]; Human Torch [Johnny Storm]; Medusa] (flashback); Father Neptune; Ibbar; Ariel; Kabal; Dr. Strange [Stephen Strange] (cameo); Force [Clayton Wilson] (introduction); Spider-Man [Peter Parker] (cameo)
Namor returns to Atlantis and finds its inhabitants in a comatose state. The Amphibians believe they can cure them but they need the help of Dr. Walters. Namor goes to find Walters but encounters his assistant Wilson who has built himself a suit with force powers.