Bobby Granito of Staten Island is using his resilient "New York attitude" for good. Tough Mudder: The Challenge Within is a one-hour special airing on The CW Network Tuesday at 8 p.m., featuring "everyday heroes" completing the 12-mile "mud race" obstacle to prove their personal challenges have made them stronger in the end.

Bobby, his brother, Jim, and their stepbrother, Brandt, are part of a tight-knit Italian-American family. Bobby was diagnosed with multiple sclerosis just weeks before his 50th birthday. Determined not to feel sorry for himself, he declared it "an inconvenience" and is on a mission to keep his condition from progressing.