The video shows a person using a welding tool to weld a piece of metal. The welding tool emits a bright blue light and sparks as it comes into contact with the metal. The person is wearing protective gear, including gloves and a mask, to shield themselves from the intense heat and light. The metal being welded appears to be a thick, rectangular piece, and the person is welding along the seam of two pieces of metal. The background is dark, indicating that the welding is being done indoors or at night.