The video shows a first-person view of a player in the game Minecraft. The player is standing on a platform made of white blocks and is looking down at a wooden lever. The player then pulls the lever, causing a redstone mechanism to activate. The mechanism consists of a series of redstone dust, repeaters, and a dispenser. The player then places a green block on the dispenser, which causes a redstone signal to be sent to a piston. The piston then pushes a wooden block, which falls onto a redstone torch, activating it. The player then places a wooden block on top of the torch, which causes the piston to retract. The player then pulls the lever again, causing the redstone mechanism to activate again. The player repeats this process several times, demonstrating how the redstone mechanism works.