Planet Samur was once a peaceful haven, but It was Samur's misfortune to find itself situated on the furthermost frontier in the eternal war between the amoeboid Rutan Host and the belligerent, troll-like Sontarans...The TARDIS has landed here, too, bringing the Doctor, Tegan, Turlough and Nyssa into the second great Battle of Samur. Fighting not only the Sontarans, but mystical mercenaries... and a deadly, decades-old curse.
