In small towns, and along America's back roads, treasures are waiting to be uncovered valuable relics from our history that are hidden in junk piles, buried in barns and stacked in garages. It takes experts to find them and turn rust to riches. American Pickers follows two of the most skilled pickers Mike Wolfe, owner of Antique Archaeology, and his business partner, Frank Fritz as they hunt down objects with historical, collectible and pop culture value. Along the way, they meet people whose own stories open a window into American lives and history. AMERICAN PICKERS: COLLECTION FOUR proves there's no place Mike and Frank won't go in search of hidden treasure as they pick through the hills of Malibu, California, go to a backcountry Alabama auction, and go on assignment for William Shatner.