Recalls the construction of the 1500-mile "shortcut to Tokyo" through Canada in 1942 by 11,000 U.S. troops (4,000 of them black). It wasn't the Army's greatest World War II triumph, but it was one of the first, and it gave Americans, who feared a Japanese buildup in the Aleutians, a needed morale boost. This hour is light on military and engineering detail, and packed with proud GIs recalling mud, cold and toil.