The story:
The cruise ship S.S. Calabra makes a stop at Bengali's capital Mowiton, just enough time for three daring criminals to rob the city's bank and re-board the ship before it sails.

On receiving news of the robbery, the Phantom instructs the Jungle Patrol to transport ???Mr. Walker?? to the ship before it reaches Durbar and the trail goes cold. Since no-one knows the bank robbers' real identities, the Phantom must tread carefully as the suspicious murderers target the newcomer...