In this white-knuckled Star Trek: The Next Generation thriller, followers of the bloodthirsty tyrant Khan Noonien Singh bring the galaxy to the brink of another Eugenics War.
Centuries ago, the brutal Khan Noonien Singh's remaining followers left Earth for the planet Hera to continue his experiments in selective breeding. Now, they are finally ready to launch their plan of universal domination—with the USS Enterprise as their weapon. Captain Picard must enlist the help of Heran expatriate Astrid Kemal to defeat her fellow superbeings. But unless the captain and crew of the Enterprise can stop them, the Heran infiltrators could alter the genetic landscape of the galaxy for generations to come.