Valor: unsung heroes from Iraq, Afghanistan, and the home front

Chris Choay : "It was the loneliest moment of my life"

James Hassell : A son's promise

Michael Waltz : The cerebral warrior and the friendly American

Steve Sanford : "The worst soldier in the history of the Army"

Buck Doyle : Eternal love of the brotherhood

Chris Kyle : The overworked guardian angel

Ryan Welch : "My buddies' keeper"

Kyle Need : Midnight rescue in the middle of the ocean

Dan Foster : Walking a step higher.