Docks of New York

Mallet is Saundra's cousin who has insinuated himself into Toscania's government by posing as her protector. However, he secretly wants the throne for himself. By killing Saundra, the last heir of Toscania's royal line, Mallet would become the next in line to rule. He hires Compeau to assassinate her and offers the stolen necklace, an emblematic crown jewel, as payment for the murder.

Mallet's friendly facade early in the film masks his ambitious desire to seize power.

Compeau is an associate of Toscania's Gestapo operating in New York. He steals the necklace on behalf of Mallet, who needs the crown jewel as payment for hiring Compeau to kill Saundra. The necklace serves as both a symbolic royal artifact and an actual bribe to fund the assassination plot.

The stabbing occurs suddenly, showing Compeau is willing to use violence for his criminal mission.

After Compeau stabs a man on an East Side street corner and searches the body, he is interrupted by the arrival of police. In the ensuing chaos, Compeau drops the necklace near the boys' tenement. Glimpy discovers it lying on the ground and shows it to Muggs, not realizing its significance or connection to the murder they just witnessed.

The necklace appears unexpectedly, setting up the central mystery.

Mallet has deceived Toscania's prime minister by claiming loyalty to the royal line. By posing as Saundra's protector, Mallet gains access to her and the trust of government officials. This facade allows him to orchestrate her assassination without raising suspicion, while positioning himself as the loyal alternative when she dies.

Mallet's helpful demeanor toward the princess hides his treachery.

When Saundra tries to pawn an imitation of the real necklace at Kessel's shop, it creates confusion. Mallet and Compeau later realize the necklace recovered by the boys is a fake, the real one remains hidden. This twist forces the Kids to continue the dangerous pursuit to recover the genuine crown jewel, as only the authentic necklace can prove Saundra's royal identity.

Saundra's poverty forces her to pawn a fake, hinting the real jewel is elsewhere.

Marty, Glimpy's Merchant Marine cousin who loves Saundra, makes a critical mistake at the police station. He admits he visited Kessel's pawnshop just before the murder to buy an engagement ring. Since he was at the scene shortly before Kessel was found stabbed, the police arrest him on suspicion of murder, despite his true intention being to purchase a ring for Saundra.

Marty's romantic motives place him at the wrong place at the wrong time.

After Mallet discovers Saundra and Mrs. Darcy have moved, he finds a coded message left by Mrs. Darcy that reveals their new address. The message becomes a crucial clue that guides Muggs and the gang toward the next location, allowing them to reach Saundra before Mallet can carry out his assassination attempt.

Mrs. Darcy's precaution with the coded message proves essential to the rescue.

The boys are arrested because they stumble upon Kessel's stabbed body at his pawnshop shortly after Saundra leaves and Compeau follows her. The police find them at the crime scene with no explanation, and they refuse to reveal their informant's identity when pressured by Capt. Jacobs, making them prime suspects in the murder.

The timing of their arrival makes them look guilty.

The Kids stage a bold break-in at the mansion where Mallet and Compeau are hiding. They catch Compeau by surprise and overpower both criminals during a fight. When the police arrive, the boys present the evidence exposing Mallet as the mastermind behind the assassination plot and Compeau as his hired killer. The prime minister witnesses the confession and acknowledges Saundra's rightful status as princess.

The Kids' determination to protect Saundra drives their confrontational approach.

Mrs. Darcy is a war refugee from Toscania who has been hiding and protecting her niece Saundra, the true princess. She recognizes the jeweled necklace as belonging to the royal family because she has seen it before while living in Toscania. The necklace is a crown jewel that symbolizes the royal lineage, making its theft and recovery central to proving Saundra's identity.

Her refugee background hints at her connection to Toscanian royalty.

After Compeau spots the boys with the necklace he just stole, he pursues them to recover the valuable crown jewel. He needs the necklace to deliver it to Mallet as payment for the assassination job. The chase is interrupted when police sirens sound, forcing Compeau to flee and temporarily abandoning his attempt to retrieve the stolen item.

The chase establishes Compeau as a persistent threat throughout the film.

Saundra is living in obscurity as a penniless war refugee, constantly fearing discovery by the Gestapo. Despite being the true princess of Toscania, she has no access to her royal assets. Desperate for money, she attempts to pawn an imitation of her own necklace, not realizing the real crown jewel is in the hands of the East Side Kids.

Her poverty contrasts sharply with her royal heritage.

The prime minister's presence in the country confirms that Toscania's throne is in play. Mallet has persuaded him that he is loyal to the royal line, using this deception to operate openly. Once the prime minister learns the truth about Mallet's assassination plot and Saundra's true identity, he becomes the authority who can officially recognize her claim to the throne and end Mallet's scheme.

The prime minister's arrival raises the political stakes significantly.