Pursuit to Algiers

When the king of tiny Rovina is assassinated, their prime minister approaches renowned British detective Sherlock Holmes (Basil Rathbone) to escort Prince Nikolas (Leslie Vincent) home to assume power. Holmes foils a sabotage plot against the prince and, presenting Nikolas as the nephew of his friend Dr. Watson (Nigel Bruce), the trio sails to Alexandria, Egypt. On board, singer Sheila (Marjorie Riordan) acts suspiciously, and three strangers boarding in Lisbon, Portugal, seem to know Nikolas.