"In Search Of The Castaways" - With good reason to believe that Captain Grant, skipper of the S.S. Brittania, is still alive, Lord Glenarvan, owner of the Steam Navigation Company, sets out to rescue him. Aboard his ship are Grant's daughter and son, as well as their companion, a Frenchman named Jacques Paganel. A series of hair-raising incidents as they travel the 37th parallel, including surviving an earthquake, flood, and attack by a giant condor, adds up to exciting adventure. In Australia, they team up with a former member of Grant's crew, Thomas Ayerton, who turns out to be a gunrunner who had set Grant adrift. Eventually, in New Zealand, the children outwit him and rescue Grant.