Oprah: Where Are They Now? updates us on 90's pop sensation Hanson; the 11-year old who wanted a sex change and the family addicted to heroin.

Oprah: Where Are They Now? unlocks the The Oprah Winfrey Show vault and takes a look back at '90s newsmaker Mary Jo Buttafuoco and the 28-year old addicted to plastic surgery. Tune-in for updates from these guests and more!

Todd Sommer, a 23-year-old Marine, died suddenly in 2002. Military authorities said it was murder - that he was poisoned with arsenic by his wife Cynthia. The defense claimed not only was Cynthia innocent, but in fact Todd wasn't poisoned at all.

The CEO and President of 7-Eleven, Joe DePinto, goes undercover in his own company where he discovers that one of his corporate policies has not been implemented on the frontlines and finds himself inspired by a delivery driver's approach to life.

Dave Rife, the owner of White Castle, goes undercover in his own company where he accidentally ruins thousands of hamburger buns after mishandling equipment in one of his bakeries, and also discovers low morale among his employees at a local factory.

The boss of Philly Pretzel Factory is forced into action after one franchise owner goes rogue.