 "Cog" opens with a close-up on a transmission bearing rolling down a board into a synchro hub. The hub in turn rolls into a gear wheel cog, which falls off of the board and into a camshaft and pulley wheel. The camera tracks slowly from left to right, following the domino chain of reactions across an otherwise empty gallery space. The complexity of the interactions increases as the commercial progresses, growing from simple collisions to ziplines made from a bonnet release cable, scales and see-saws constructed from multiple carefully balanced parts, and a swinging mobile of suspended glass windows. Later sequences begin to make use of the Accord's electronic systems; the automated water sensors attached to the windscreen are used to make wiper blades start crawling across the floor, and a side door with a door-mirror indicator lowers the automated window to let a part pass through.
