In the video, a person is seen hammering a nail into a tree. The person is holding the nail with their left hand and using a hammer with their right hand to drive the nail into the tree. The hammer is repeatedly struck against the nail to drive it deeper into the tree. The person's hands are visible in the frame, and the background shows a forest setting with trees and foliage. The video captures the action of hammering in detail, showing the movement of the hammer and the nail as they are driven into the tree.