The Giant Penguin Enigma (S04E05)

Title: The Mystery of the Colossal Penguin Plot: When Mauro De Mauro vanishes in Italy, a shocking discovery is made in a cave on Mount Etna: human remains tied to mafia connections and a long-ago assassination from 1962. As investigators delve into the case, they uncover a web of crime that links the past to the present, revealing the dark secrets hidden within the shadows of Italy's history.