Live an American Legend.
You control Eliot Ness' elite squad of crimebusters. The Alleyway Shootouts, the Warehouse Bust, the Border Raid, the Train Station Confrontation and the Final Rooftop Duel enable you to re-live the knife-edge existence of Eliot Ness, as you crusade through 1920's Chicago in search of Capone's retribution.
Take on the Mob as you lead the Untouchables on their most exciting and challenging mission... With seven levels of explosive action and a thrilling climax!
--From the NES Untouchables instruction manual.