Underwater Security

1. The Alcatraz Story1959-01-04 2. Operation Greenback1959-01-11 3. Underwater Security1959-01-18 4. Underwater Labyrinth1959-01-25 5. Monte Cristo1959-02-01 6. The Stunt1959-02-08 7. Diving for the Moon1959-02-15 8. The Search1959-02-22 9. Jettisoned1959-03-01 10. Murder at 60 Feet1959-03-08 11. Air Pockets1959-03-15 12. The Dam1959-03-22 13. Dock Fire1959-03-29 14. The Persuaders1959-04-05 15. Nerve Gas1959-04-12 16. Strange Salvage1959-04-19 17. Underwater Survey1959-04-26 18. Underwater Curtain1959-05-03 19. Hermes1959-05-10 20. The Briefcase1959-05-17 21. Cave Diving1959-05-24 22. Water Ski Show1959-07-01 23. Underwater Shrine1959-06-07 24. Chain of Evidence1959-06-14 25. Treasure Hunt1959-06-21 26. Sea Serpent1959-06-28 27. The Getaway1959-07-05 28. Underwater Ejection1959-07-12 29. The Female1959-07-19 30. Port Security1959-07-26 31. Underwater Park1959-08-02 32. Underwater Unit1959-08-09 33. Proof of Guilt1959-08-16 34. Chained1959-08-23 35. Ransom1959-08-30 36. Oil Island1959-09-06 37. Base of Operations1959-09-13 38. Kelp Forest1959-09-20 39. The Raft1959-09-27