The video shows a group of men in a pool, all wearing military uniforms and carrying backpacks. They are swimming in a line, with one man leading and the others following behind him. The water is calm and the men appear to be moving slowly and deliberately. The backpacks they are carrying are large and appear to be heavy, suggesting that they may be training for a mission or exercise. The men are all focused and determined, indicating that this is a serious training exercise.