ground. >> he had been caught in a drug sting spearheaded by a hard-nosed federal prosecutor, larry beaumont. >> we scooped him up in an operation that i ran, we called it "operation snowplow." >> in court, beaumont showed keene no mercy. >> he was coming at you on all fours, wasn't he? >> oh, yeah, he was a bulldog. >> jimmy was convicted and slapped with a ten-year sentence. >> it was a pretty stiff sentence. i knew he didn't expect ten years in that case. >> your father was in the courtroom. >> right. i knew i had let him down in probably one of the biggest ways you could let somebody down. >> keene's future was bleak. he faced ten years away from his glamorous life. the fancy cars, the big bucks. but in 1998, just when all hope seemed lost, his old nemesis, beaumont, came to him with an offer of freedom -- attached to that accordion file he'd slid across the table. in return, keene would have to agree to risk everything and become an undercover informant in one of the roughest prisons in the country, the maximum security lockup in springfield, missouri. it was a psychiatric prison with b