The video begins with a close-up shot of a metal rod being heated in a furnace. The rod is glowing orange, indicating that it is extremely hot. The camera then pans to show the interior of the furnace, which is also glowing orange due to the intense heat. The furnace appears to be made of bricks and is filled with burning coals. The video provides a detailed view of the heating process, showcasing the intense heat and the transformation of the metal rod as it becomes malleable.