Ritter Building

546 Adams is the address of an office building in Washington, DC.

Day 7
Colonel Iké Dubaku and Nichols had their base of operations established in this office building. Early in the morning, Nichols brought Michael Latham and handed him over to Dubaku who imprisoned him in a room. Dubaku oversaw the attacks of the morning from this building, including the plane crash over Washington and the attempt on Kidron, Ohio.

After Nichols delivered Ule Matobo and his wife to Dubaku, Chloe managed to track them to the building. Then Jack Bauer, Tony Almeida, Bill Buchanan, and Renee Walker planned to infiltrate the building. Walker entered through the front door using her FBI identification, while Jack, Tony, and Buchanan went through the roof. Meanwhile, Chloe coordinated from the van telling them where Dubaku was located.

20 minutes after they came in, Nichols noticed the surveillance cameras at the roof. Dubaku ordered the evacuation of the building, but Jack, Tony, Buchanan, and Renee stormed in initiating a gunfight. Although Nichols was killed, Dubaku managed to escape. As he walked out, a crowd had gathered outside the building to see what was happening.