In the video, a player is seen in a dark and fiery environment, holding a sword and a pickaxe. The player is fighting a large, white, cube-shaped creature with tentacles. The creature is suspended in the air and is attacking the player with fire. The player is using the sword to hit the creature while also using the pickaxe to dig at it. The environment is dark and the only source of light is the fire from the creature and the player's torch. The player's health bar is visible at the bottom of the screen, indicating that they are taking damage.