The Untouchables S04 E14 The Speculator

"The true story of FBI man Eliot Ness's savage war on the notorious mobsters Al Capone left behind!"

1929. Eliot Ness gets another anonymous phone tip: a big meet at a warehouse on Grover Street, Nitti and all the boys will be there. At the warehouse, about 20 hoods are putting their record books into a huge trunk. Since Al Capone got nailed because of bookkeeping, from now on nobody is to keep any written records; there will only be one central file, and the bookkeeper will be Leo Stazak.