The video shows a first-person view of a player in a video game holding a gun and shooting at enemies. The player moves through different rooms and corridors, aiming and shooting at enemies that appear in their path. The game environment is realistic, with detailed textures and lighting. The player's gun is visible in the lower part of the screen, and the enemies are shown being hit and falling to the ground. The game's HUD is also visible, showing the player's health, ammo, and other game-related information.