World Trade Center Building 7 stood in the shadow of the North Tower. Inside the 47-story building: the US Secret Service's largest field office with more than 200 employees. On September 11 all of them escaped, but Building 7 was reduced to rubble. This week on "CyberCrime," an exclusive look into the hours, weeks, and months following 9/11 and how the US Secret Service was able to recover thanks to the largest cybercrime team in the country -- the New York Electronic Crimes Task Force (NYECTF).

"All the evidence that we stored at 7 World Trade, in all our cases, went down with the building," according to US Secret Service Special Agent David Curran -- the number three guy in that office. "We lost our network, we lost all our computers, we lost all the equipment that we use as Secret Service Agents. Everything from machine guns to our shotguns to our electronic equipment that we use."

But despite their physical losses, nothing could shake the field offices solid foundation. This week on "CyberCrime," you'll see how the members of the NYECTF came to the Secret Service's rescue. Watch as more than 50 law enforcement agencies, 200 corporations, and 12 universities donate tens of thousands of dollars in equipment and hundreds of volunteer hours to enable the US Secret Service's New York office become operational within just 48 hours of the attacks.
This article is based on original reporting by "CyberCrime" senior producer and co-host Alex Wellen.