Description: Reviving quickly from the blow that knocked him to the floor of the airdrome control room, Buck overpowers Carson and closes the great gates of Hidden City just in time to bar entrance of the first of the enemy bombers. Huer tries unsuccessfully to radio the Saturnians to join them in battle to wipe out the despotic ruler, Killer Kane. Buck and Buddy take their rocket ship to Saturn and find that Lasca has taken Prince Tallen prisoner and is demanding the planet submit to rule by Kane. Buck urges them not to deal with the treacherous Lasca, as Killer Kane's ship start to bomb the city. Buck and Buddy try to escape in the bullet car but a bomb demolishes the roof, burying them in a mass of falling stone and debris.