January 16, 1935. Oklawaha, Florida. Eliot Ness, along with Bill Youngfellow and Martin Flaherty, are closing in on Ma Barker, who is holed up in a house along with 2 of her sons, Lloyd and Fred. Ness says they are wanted for everything from bank robbery, kidnapping, to first-degree murder. Now that Ness has found where the Barkers are, he contacts half a dozen state troopers and local police for backup. From a distance, Ness yells at Ma Barker and her boys to surrender and come out with their hands up. Ma Barker goes to a closet, and inside is an arsenal of weapons-- machine guns, pistols, hand grenades, etc., enough for a small army. She fires a chopper at Ness; he jumps behind an 8-foot long wooden flower pot that gets riddled with bullets. Ma Barker throws a hand grenade that almost blows up Bill Youngfellow. Ma Barker is the most vicious outlaw they've ever faced. In a flashback, we see how it all started in Tulsa, Oklahoma years ago: Ma Barker was a church-goer, but always making