The video shows a busy square in Moscow, Russia, likely during a public event. The famous St. Basil's Cathedral is prominently featured in the background, along with a section of the Kremlin wall and one of its towers. Many people are walking around, many of them wearing running attire, suggesting a marathon or race. Some are wearing orange or red shirts. There are also people in safety vests. Several white tents are set up, possibly as aid stations or information booths. A large blue board displays a schedule of events, written in Russian. Some people are reading or looking at the schedule. The weather appears sunny with some clouds. People are walking in various directions across a crosswalk. An ambulance is visible near the cathedral.