Irene Weinhardt's father, renowned physicist Kenneth Weinhardt, has been officially declared dead. But his body has never been found. When the Hardys agree to help Irene investigate her father's fate, they discover that his supersecret research into superconductors may have been worth millions...making him a select target for foul play!

The search leads Frank and Joe from the famed laboratories at Los Alamos, New Mexico, to the frigid continent of Antarctica to the very frontiers of science. As the evidence mounts, it doesn't take an Einstein to see that this equation adds up to danger. And a shocking discovery in the ice could leave the boys cut in the cold for good!