Fu Surrenders

Fu Manchu gets away by using a secret trap door hidden in a closet. On a French warship, sailors drop depth bombs on Fu Manchu's underwater boat, forcing it to come up from below the water. The doctor gives up and surrenders! Fu Manchu catches Smith and Petrie in their own trap, but then he pulls out his disintegrator gun and keeps them from moving. He makes Dr. Petrie give shots to both Florette and Sterling. These shots will turn them into people who have to do whatever Fu Manchu says. Just before the shots can happen, though, a police whistle blows loudly. Fu Manchu runs away again through another secret trap door in a closet.