In Greenland, Dr. James Hamilton develops equipment capable of reading the mind of another person, and has successfully tested this with his secretary Ingrid Larkin, where he learns of her unrequited love for him. After a fatal accident of a military man, his commander, Major Roger Brothers, deranges, hallucinates, and tries to blow up the base. Colonel William Campbell sends Major Brothers to Dr. Hamilton's office, where he decides to use his device to read the thoughts of Major Brothers. A power surge causes their minds to switch. Now the insane Brothers is free to destroy the base using Dr. Hamilton's body while the doctor is locked in a cell.
—Claudio Carvalho, Rio de Janeiro, Brazil