In his unique invention the Ocean Arrow, an "underwater helicopter," Tom Swift embarks on a perilous search for one of history's greatest scientific treasures -- a lost rocket bearing life from outer space. Directed to Swift Enterprises but diverted from its course by a treacherous rival, the vessel has plunged into the depths of the Atlantic, its location unknown. Accompanied by his friends Bud Barclay and Chow Winkler and guided by a pair of expert...