Back at their shop, they overhear the spies speaking German and follow them to a hideout outside of town, where Middling and another spy are plotting the destruction of the town's new magnesium plant. Stan and Ollie try to send a message to the civil defense, but instead they are captured by the German agents.
The protagonists overhear spies speaking German, leading them to a secret location where they discover a plot to sabotage the town's new magnesium plant.  Stan and Ollie attempt to warn authorities, but their efforts result in capture by the German agents.