A video shows a person holding a smartphone with a video playing on the screen

A video shows a person holding a smartphone with a video playing on the screen. The screen shows a group of men in what appears to be a gymnasium or warehouse-like space. Most of the men are wearing blue uniforms and appear to be doing exercises or stretches. A man in a black shirt and pants is at the forefront, seemingly leading the group. The environment includes racks, possibly for storage, and the lighting is a mix of natural and artificial. The overall scene has a casual, training-exercise vibe.