Greg Noonan

Elliot Ness, an ambitious prohibition agent, is determined to take down Al Capone. In order to achieve this goal, he forms a group given the nickname “The Untouchables”.

Mark Kaminsky is kicked out of the FBI for his rough treatment of a suspect. He winds up as the sheriff of a small town in North Carolina. FBI Chief Harry Shannon, whose son has been killed by a mobster named Patrovina, enlists Kaminsky in a personal vendetta with a promise of reinstatement into the FBI if Patrovina is taken down. To accomplish this, he must go undercover and join Patrovina's gang.

Experienced Green Beret sergeant Johnny Gallagher is escorting a prisoner, Airborne Ranger Thomas Boyette, back to the US, but Boyette escapes and Gallagher must risk life and limb to catch him.