Episode: 1 The Sunken Treasure Episode: 2 The Secret Cave Episode: 3 The Eagle's Nest Episode: 4 The Chase Across the Desert Episode: 5 The Tiger Hunt Episode: 6 The Crocodile Pool Episode: 7 The Magic Flute Episode: 8 The Kangaroo Boxing Match Episode: 9 The North Pole Frolics Episode: 10 The Circus Comes to Town Episode: 11 The Great Circus Robbery Episode: 12 The Show Goes On Episode: 13 The Big Blow Up Episode: 14 The Sealed Envelope Episode: 15 The House of Mystery Episode: 16 The Lost Trail Episode: 17 The Baby Carriage Mystery Episode: 18 The Forged Letter Episode: 19 The Hidden Microphone Episode: 20 The Rajah's Boy Episode: 21 The Stowaway Episode: 22 The Strange Pit Episode: 23 The Secret Submarine Base Episode: 24 The Big Fight Episode: 25 The Submarine Captain Episode: 26 Hero's Reward Episode: 27 The Great Prison Break Episode: 28 The Junior F.B.I. Episode: 29 The Mechanical Monster Episode: 30 The Kidnapped Professor Episode: 31 The Bubble Gum Mystery Episode: 32 The Sky Pirates Episode: 33 The Magic Paint Episode: 34 The Strange Message Episode: 35 The Menace from Mars Episode: 36 The Atom Bomb Episode: 37 The Wonders of Mars Episode: 38 Captured Episode: 39 The Great Air Battle Episode: 40 The Mysterious Treasure Episode: 41 The Crazy Scientist Episode: 42 The Terror of the Cave Episode: 43 The Thing? Episode: 44 The Midnight Alarm Episode: 45 The Cannibal Island Episode: 46 Double Crossed Episode: 47 Buried Treasure Episode: 48 A Friend Is Lost Episode: 49 Kidnapped Episode: 50 The Space Ship Episode: 51 The Frustrated Robbery Episode: 52 A Magnificent Present