Built from thousands of videos, police radio recordings, and internal law enforcement footage, this New York Times visual investigation reconstructs the January 6, 2021 assault on the U.S. Capitol minute by minute. The film tracks how a rally on the Ellipse, fed by months of false claims about a stolen election, moved down Pennsylvania Avenue and became a breach of the building where Congress was certifying the presidential vote. Synchronized timestamps and geolocated clips place specific groups, including members of the Proud Boys and Oath Keepers, at specific doors and windows, showing how an initial perimeter collapse cascaded into hours of hand-to-hand fighting with police in the tunnels and hallways. Radio traffic captures officers calling for backup that arrived late. The reporting stays with the physical mechanics of the day: who moved where, who opened which door, how the mob reached the Senate floor. It ends with the Capitol cleared and the count resuming that night.