Summary Tremors three back to perfection is an action DVD movie released in the USA originally categorized as Action it returns to the small Nevada town of perfection where local resident and adventurer Burt Grummer comes back after traveling abroad and killing carnivorous worms called Graboids and their offspring Shriekers he must deal with crooked land developers and a thrill seeker named Jack Sawyer who is looking for wealth in the potential tourist town and eventually confronts a new strain of Graboid worms that metamorphose into their second Shrieker phase and then unexpectedly evolve into a third stage leading to a final battle between Burt and Jack in the surrounding desert Highlights include the return of Burt Grummer the conflict with land developers the introduction of a new Graboid strain the three stage evolution and the final desert battle the game was added to iOctavio com on 2006 April 11