Bob and Joan Nast have turned a run-down ranch in South Florida into a haven for terminally ill children and their families

Since 1987, Diane Dunne has fed, clothed and cared for her homeless flock while churches in the city ignored her work.

She's 87, but her age hasn't stopped Agnes Numer from feeding the world's poor from her makeshift ministry base in rural California.

With his unique educational program, Kenneth Sullivan is helping troubled kids find a way out of poverty and crime in a neighborhood known for drive-by shootings and drug deals. 

Bob Ferguson started a treatment program six years ago that has helped countless addicts kick harmful habits.