Captain Art Smith and four US Marine volunteers in Singapore investigate the disappearance of other Marines on shore leave in that city and discover that a mad scientist is responsible.Captain Art Smith and four US Marine volunteers in Singapore investigate the disappearance of other Marines on shore leave in that city and discover that a mad scientist is responsible.Captain Art Smith and four US Marine volunteers in Singapore investigate the disappearance of other Marines on shore leave in that city and discover that a mad scientist is responsible.
