Dogs enduring confinement, overcrowded living conditions, excessive breeding, and other problems associated with puppy mills gained as strong an ally as they could find in this country: Oprah Winfrey.

Reporter Lisa Ling, teaming up with Main Line Animal Rescue founder Bill Smith, investigates puppy mills in Lancaster County, Penn. and then Oprah leads the guests through a powerful and emotionally compelling discussion about puppy mills and the suffering and misery for which they are responsible. She shows a remarkable amount of footage, including scenes from The HSUS's three recent investigations of the mills and related dog auctions.

The show is scheduled to air this Friday, April 4 at 4 pm right here on KHOU-TV.