"Solo has a fine nose and knows how to use it, but he's only one of many thousands of scent-detection dogs all over the United States. That's a group that includes cadaver dogs, tracking, trailing, and apprehension dogs; dogs that can locate unmarked graves of Civil War soldiers; and even dogs that can find drowning victims more than two hundred feet below the surface of a lake. All these dogs love to use their noses. They think their job is simply...

"On September 11, 2001, terrorists attacked the World Trade Center in New York City. Many people were killed, and many were trapped under the collapsed buildings. When police officer James Symington heard about the attacks, he knew he and his German shepherd, Trakr, had to help. Follow Trakr's lead as he and Symington bravely search and dig through the rubble to help rescue survivors of one of the deadliest days in U.S. history" --