They could make a "seconds from disaster" episode for the American Mafia.
Luciano is imprisoned --> Genovese succeeds him --> Genovese flees to Italy --> Costello takes his place --> Luciano is ratted out by Genovese and is forced out of Cuba --> Genovese forces Costello into retirement --> Genovese sets up the Apalachin meeting in relation to earlier events --> Barbara neglects paying off cops --> Apalachin is raided & American Mafia becomes public --> Luciano & Costello take revenge and set up Genovese for a drugs bust along with Valachi and they are sent to prison --> Genovese tries to take out Valachi in prison but fails --> Valachi becomes a government witness --> Valachi hearings.