A female character with large white wings and a wide-brimmed hat holds a large gun in a black and white scene, followed by a male character with a topknot and a large weapon in a similar monochrome setting, then a character in a pumpkin-headed mask crouching in a dark environment with a full moon, the scene shifting to color as the character looks up with glowing eyes, and finally the text "OVERWATCH HALLOWEEN TERROR" appears over a dark, moonlit background.