Clark Savage, Jr. the inspiration for Superman and James Bond, along with Renny, Johnny, Ham, Monk and Long Tom, as they journey to Central America to reclaim Doc's legacy.

Not ships but nations are the prey of the sinister Oriental mastermind, Tom Too. Only Doc Savage and his daring crew stand a chance of saving the world from this figure of evil and his lethal legions. On land and on sea, in the weirdest corners of the wide world, Doc and his friends plunge into their wildest adventure — against their most dangerous foe!

An awesome legion of master criminals launch a devastating series of raids that set the entire east coast of America aflame. Skyscrapers explode, ocean liners disappear, key witnesses are kidnapped and brutally murdered as the holocaust rages. In a desperate race against time, Doc Savage attempts to discover the true identity of the twisted brain who rules the silver-costumed marauders while the mysterious Ull and his army of hooded assassins move closer to their grim objective of World Domination! with Patricia Savage!

An awesome legion of master criminals launch a devastating series of raids that set the entire east coast of America aflame. Skyscrapers explode, ocean liners disappear, key witnesses are kidnapped and brutally murdered as the holocaust rages. In a desperate race against time, Doc Savage attempts to discover the true identity of the twisted brain who rules the silver-costumed marauders while the mysterious Ull and his army of hooded assassins move closer to their grim objective of World Domination! with Patricia Savage!

In Maine on business, Doc is mysteriously warned by everyone to leave if he values his health.  Soon, Doc finds himself behind bars on trumped-up charges.  Forced to escape to prove his innocence, Doc travels to a secret cove that harbors a gang of bloodthirsty cutthroats -- none of whom wish him good health!