Roger Mooking's on the hunt for lip-smacking barbecue ribs. In Hattiesburg, Miss., Leatha's Bar-b-cue Inn seasons their pork and beef ribs with a mysterious marinade, cooks them in an unusual upright smoker, and finishes them with a top secret barbecue sauce. Roger learns how to make these Southern-style ribs from Brian Jackson, a third generation pit master. And at Hometown Bar-B-Que in New York, Brooklyn native Billy Durney gives his ribs an ethnic spin. The Jerk Baby Back Ribs are seasoned with the earthy, spicy flavors of Jamaica, while the Sticky Korean ribs are glossed with a sweet and savory Asian glaze, and then topped with cashews and scallions.