The episode focuses on (Aqualad), who has seemingly betrayed the Team to work for his father, Black Manta.
: A series specifically containing "Dark" in the title; its S2E9 is titled " How to Succeed in Business Without Really Dying ". [S2E9] Darkest
While Young Justice is the most direct title match, other shows have notable ninth episodes in their second seasons that are often discussed as being "dark": The episode focuses on (Aqualad), who has seemingly