A foreign agent named Benedict Hisston is part of a conspiracy to destroy the Panama Canal and the US Navy's Atlantic Fleet. He tries to get information about mine placement from Captain Richard Decatur, but fails. Decatur then plays along with the spies, pretending not to suspect them, while secretly trying to thwart their plans.
The Silent Command
A ruthless foreign agent, Benedict Hisston, masterminds a treacherous scheme to cripple the Panama Canal and the US Navy's Atlantic Fleet by exploiting insider information from Captain Richard Decatur, who has access to crucial mine placement details.
