Mood: The mood of the video appears to be action-packed and intense, with a sense of urgency and danger. The presence of a gun and the serious expressions on the actors' faces contribute to this atmosphere. The theme seems to revolve around heroism, law enforcement, and possibly crime-fighting.

Environment: The environment seems to be a city setting, likely Mumbai, given the text 'MUMBAI KE HERO'. The background is blurred, but it appears to be an urban area with a light-colored wall or building behind the actors. The setting might be a police station or a location related to law enforcement.