Riding 1,930km along the infamous Ho Chi Minh Trail through the dense jungles of Vietnam, the goal for Rebecca Rusch is to reach the site where her father, a U.S. Air Force pilot, was shot down in Laos more than 40 years earlier.

Riding 1,930km along the infamous Ho Chi Minh Trail through the dense jungles of Vietnam, the goal for Rebecca Rusch is to reach the site where her father, a U.S. Air Force pilot, was shot down in Laos more than 40 years earlier.