In the video, a person is seen assembling a Lego tank. The tank is made of gray Lego bricks and has a turret on top. The person is placing a Lego cannon on the tank, which is also made of gray Lego bricks. The cannon is positioned on the turret, and the person is seen adjusting it to fit properly. The background of the video is a green Lego baseplate, and there are trees and a blue sky in the background. The person's hands are visible as they work on the assembly of the tank and the cannon.