After the depression following Margherita's death, marshal Rocca decides to put his uniform back on, with the intention of tracing the gang that murdered her; however, the anxiety of capturing them induces him to believe in false indications, which cost him his suspension from service. Determined to go it alone, he goes to Puglia, where the gang has a hideout, but Cacciapuoti alerts the police and the gang is routed. Rocca is seriously injured in the operation, but little Tommy will give him the strength to heal and, once reinstated in service, to receive a solemn commendation for the work done.