Whip nae nae

Two men in a courtyard with cinder block walls face off, each holding a toy gun; one man in a red shirt and bandana aims his toy gun at the other, who is wearing a green shirt and a cap, before the scene cuts to a man in a green shirt and cap running away from a wall with a red splatter, then lying on the ground, while another man in a black shirt and cap runs across the frame, and a man in a green shirt and cap performs a high kick on a man in a grey shirt and cap.