Mood: The mood of the video appears to be intense and serious, with a sense of anticipation and suspense. The theme seems to revolve around a crime or investigation, given the title 'HIT: The First Case' and the overall tone of the image.

Environment: The environment appears to be a cold, possibly snowy or foggy, outdoor setting, given the man's jacket and the background. The exact location is unclear, but it seems to be a dramatic, cinematic setting.