On the night before he sails in search of the steamship Arcadia's sunken gold, Paul Sinclair (Bruce Bennett) meets Madeleine Neilson (Anita Louise) in a San Francisco nightclub. On the second day at sea, Madeleine turns up as a stowaway. While diving and searching for the sunken gold off the Philippines, Paul discovers that a foreign submarine has been laying mines in order to completely cut off the Philippines from American protection.
The Phantom Submarine
On the night before he sails in search of the steamship Arcadia's sunken gold, Paul Sinclair (Bruce Bennett) meets Madeleine Neilson (Anita Louise) in a San Francisco nightclub. On the second day at sea, Madeleine turns up as a stowaway....
