A shark-like creature with a rider, followed by a close-up of a blood-splattered chainsaw.

The ad opens with a shark-like creature with a person riding it, moving through a dark, glowing environment. This transitions to a close-up of a chainsaw, splattered with blood. A character shouts about 'Lord Chainsaw'. The scene shifts to a window shattering, revealing fiery explosions behind it. A fist punches through the ground, causing an explosion. A truck explodes on a city street, with a voice saying 'Come here, Denji.' A blurred, fiery projectile streaks across the screen. A young man with purple eyes looks intensely at the camera, with text overlaying. A woman with wings and red hair looks surprised, with the same text overlay. Two figures, one with a chainsaw for a head, face off in a city street with explosions in the background. The title card 'Chainsaw Man The Movie Reze Arc' appears, followed by the Crunchyroll logo and app store links.