The video shows a first-person view of a player in a Minecraft game. The player is building a contraption using various blocks and items, including a dispenser, a lever, and a piston. The player places the blocks in a specific order to create a mechanism that activates when a button is pressed, causing a piston to push a lever, which in turn activates a dispenser to shoot out a projectile. The player tests the mechanism by pressing the button and observing the projectile's trajectory.