Part 1 of 2: Susie Scott Krabacher talks about the abuse she suffered as a child, a promise she made to God, her rocket ride to fame as a PLAYBOY centerfold, confronting the dark side of that world, and the marriage to a conman that eventually left her homeless.

Grammy-winning Bluegrass fiddler Michael Cleveland talks about battling against the limitations of blindness and hearing loss, a youthful encounter with Bill Monroe, the drinking that once dominated his life, and how he keeps pushing himself artistically.

Art Dunning talks about the love of learning that animated his youth in the segregated South and eventually led to a successful career in academia, the defining choice he faced while serving in the U.S. Air Force, and the fateful decision he made to help integrate the all-white University of Alabama football program.

Part 2 of 2: Joe Kittinger talks about reuniting with Dr. John Paul Stapp for Project Excelsior, jumping out of his balloon from a record altitude of 102,800 feet, being tortured as a prisoner of war in Vietnam, and working with the Red Bull team to help Felix Baumgartner shatter his 52-year-old record.

Part 1 of 2: Fighter pilot and test pilot Joe Kittinger talks about the sense of independence and adventure instilled in him by his parents, the yearn to fly that led him into the U.S. Air Force in the early days of jets, his life-altering introduction to Dr. John Paul Stapp, and his pioneering high-altitude work with Project Manhigh, which took him toward the edge of space in the years before NASA.

Sports columnist Dave Kindred talks about the enduring influence of small-town Midwestern values, the impact of a childhood gift, the memorable day he shared a bed with Muhammad Ali, and the late-in-life assignment that has given him purpose and fulfillment.

Part 2 of 2: Dick Rutan talks about the obstacles he and his brother Burt faced in building the Rutan Voyager and how, over the course of a nine-day journey in 1986, battling through mechanical problems, violent weather and gathering fatigue, he and Jeana Yeager established an aviation milestone that many thought impossible: flying around the world without stopping or refueling.

Part 1 of 2: Dick Rutan talks about the airplane ride that changed his life, the admonition from his mother that altered his view of the world, the need for adventure that led him to become a decorated fighter pilot during the Vietnam War, and the origins of his historic flight around the world.

Chilean-born banker Tito Echiburu talks about escaping an abusive father and political instability to chase success in the United States, the importance of goal-setting, drive and assimilation, and how he leveraged a tennis scholarship and a life-altering telegram to find happiness in a small Mississippi town.

Part 2 of 2: Michael O'Neill talks about his breakout performance as a Secret Service agent on THE WEST WING, the one part he lost that still bothers him, the most gut-wrenching role of his career, the importance of tenacity, and how some characters have burrowed deep into his soul.