When the Mud River Pound Punchers walk country roads after school, their kids often come too. "We're like a big family," says 11-year-old James Toney (white vest), beside mother Annie. They are featured in an Oprah Winfrey Network episode Tuesday about parents' efforts to curb child obesity.

A camera crew followed the Pound Punchers and their kids for three days in June to produce Tuesday's "Our America" episode. "The Mud River adults are not only saving their own lives," says host Lisa Ling, "they're saving their kids' lives too." (Annie Toney courtesy photo)

Melisa Ferrell, Pound Puncher founder, with Lisa Ling, host of "Our America." (Annie Toney courtesy photo)