The video is a gameplay clip from a video game. The main character is seen running through a dark, stone-walled room with a large door at the end. The character is wearing armor and a hood, and is carrying a weapon. As the character approaches the door, a large demon appears and attacks. The character fights the demon using a fireball attack, which is indicated by the word "Fireball" appearing on the screen. The demon is defeated, and the character continues to move forward.