In Milan, a wedding of the nobility is taking place and all rich and noble people of the area are invited. Even the king of Italy is expected to come. Then Romeo accidentally meets Bianca, Alfredo's sister who was believed to be missing. When he conveys the good news to him, he learns Alfredo's mysterious story.

Alfredo and Bianca are still on the run from their relatives. Their aunt and uncle want the badge that Alfredo hid. This badge was bestowed on Alfredo's father by Carlo Alberto, the father of the current Italian king, and legitimizes the Martini's fortune.

Professor Casella discovers that Alfredo's illness is worse than initially thought. Alfredo also knows that he will not live much longer. Nevertheless, he firmly intends of showing up before the King of Italy with his sister Bianca to expose his aunt and uncle by showing the king the authentic royal insignia. To achieve this, he thinks up a plan with the help of the Black Brothers to sneak into the duke's wedding banquet.

Alfredo wants to restore his honor before the King of Italy and accuse his aunt and uncle of murdering his parents. Unfortunately, the Wolf Pack lure him into a trap and lock him in the sewers. Romeo and the Black Brothers await his arrival so they can sneak into the banquet, but Romeo, seeing that he does not arrive, decides to go in search of him.

Alfredo and Bianca are still trying to show in front of the King of Italy and expose the damage that has been done to their family. The Wolf Pack has temporarily allied with the Black Brothers and they help carry out this plan together. They have to deal with the bodyguards of Alfredo's uncle so that Alfredo and his sister can sneak into the banquet.

The big moment is here! Alfredo and his uncle Maurizio stand before the king of Italy. Both have badges in their hands, but only one belongs to the Martinis. When the king asks which badge has the secret sign of blessing, only Alfredo knows the right answer. The evil uncle is finally exposed.