Starship pilot Terry Radnor's life is transformed by the discovery that he possesses psi powers such as ESP, and that others are working to spread them throughout the worlds of humankind. But this means danger. Most people don't want to know that "paranormal" powers exist; they have a deep innate fear having to admit that their conception of reality is false. And some will go to any lengths to suppress their emergence. A few will even resort to terrorism...