A criminal syndicate smuggles cheap diamonds from South America into the US through Puerto Rico, undercutting the legitimate market. After a special investigator is murdered, Moto is assigned to the case and teams up with Twister, a friendly wrestler, to infiltrate the gang and uncover the mastermind behind the operation.
Mr. Moto in Danger Island
In Puerto Rico, a series of baffling diamond thefts unfolds, prompting the renowned detective Mr. Moto to intervene and uncover the truth behind the brutal murder of a former investigator who was attempting to solve the case.
