Chapter Titles: 1. The Sky Wreckers 2. The Runway Of Death 3. Handcuffed To Doom 4. Four Seconds To Live 5. Death In The Air 6. Stolen Secrets 7. Tower Of Death 8. Cargo Of Destruction 9. The Clock Of Doom 10.High Voltage 11. The Kidnapped Witness 12.The Runaway Torpedo 13.Passengers To Doom 14.In The Hands Of The Enemy 15.G-Men's Dragnet