Description
When the Stratoship H.22, designed by their father, is the subject of an attempted bombing from the air, Jo and Zette fly it out of its hangar but are unable to get back. Crash-landing near the North Pole they face a race against time to get the plane back home and win the trans-Atlantic challenge. But the Stockrise brothers and their gang are still determined to thwart the operation even if it is successful.
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