The video shows a group of firefighters in full gear, including helmets and oxygen tanks, entering a building. They are moving in a coordinated manner, with one firefighter leading the way and the others following closely behind. The firefighters are dressed in brown protective suits and are carrying oxygen tanks on their backs. The building they are entering appears to be a commercial or industrial structure, with a concrete floor and metal doors. The firefighters move with purpose and urgency, indicating that they are responding to an emergency situation.