22 Chapters
- 1 SNOWED UP
- 2 A MYSTERIOUS BENEFACTOR
- 3 THE WONDERS OF THE SECRET BATTLEPLANE
- 4 A TRIAL TRIP
- 5 SO NEAR AND YET SO FAR
- 6 THE INTERRUPTED VIGIL
- 7 THE BATTLEPLANE'S OFFICIAL DEBUT
- 8 A CROSS-CHANNEL FLIGHT
- 9 A FIGHT TO A FINISH
- 10 TRICKED
- 11 THE FATE OF A SPY
- 12 SERGEANT O'RAFFERTY'S LUCKY BOMB
- 13 THE FRONTIER
- 14 ATHOL TACKLES VON SECKER
- 15 GAME TO THE LAST
- 16 À BERLIN
- 17 DISABLED
- 18 TURNING THE TABLES
- 19 A DUEL WITH A ZEPPELIN
- 20 LIBERATED
- 21 ONE GOOD TURN DESERVES ANOTHER
- 22 ALL GOES WELL WITH ENGLAND