Undercurrent

On the SS Java Queen, a man named Chris Horton becomes suspicious when he encounters a stranger posing as Mr. Ashcroft. His search for the truth leads him to take drastic actions, and back in San Francisco, he and Linda Ashcroft uncover a smuggling operation tied to the ship's captain and crew. As they plan to take advantage of the situation, they are unexpectedly confronted by Lieutenant Stoddard, who reveals shocking details about their actions.