The Double Life of Private Strong; Professor Fleming explores his uncharted brain theories on his young son Roger.
Spawn of the "X" World; Lancelot and Spud find Professor Fleming's wrecked car years after the accident.
Mystery of the Vanished Wreckage; Lancelot goes back to the wreckage, but finds it has been removed.
The Menace of the Micro-Men; After being drafted into the army, Private Strong stops a supposedly unmanned atomic tank from accidentally killing Colonel Smith and his niece.
