Founded by Albert Einstein and Harry Truman after WWII, Eureka is home to the greatest minds in science and technology. But the creations of these eccentric geniuses threaten to destroy the world as often as they save it. Jack Carter is the everyman sheriff who must use his common sense and unique street smarts to keep a lid on this Pandora's Box of a town. Especially now, when Eureka's people, cars and buildings are being swapped with people, cars and buildings from different places.