After Trimble's NASAspacecraft travels faster than the speed of light, it takes him and his android back to King Arthur's Camelot in the year 508 AD. They then use their 20th-century technology to help defeat a plot by the evil Sir Mordred and Merlin to oust King Arthur from his throne.[4][5]
Variety wrote, "Pic has some good slapstick touches and offers a generous serving of visual tricks and space hardware, though on a par with Star Wars in that department it ain't."[8] Linda Gross of the Los Angeles Times stated, "The film will provide mildly amusing summer fun for those having their first encounter with castles and kings. However, A Connecticut Yankee in King Arthur's Court, Knights of the Round Table and Camelot all captured the vigor of medieval England with more passion."[9] Carla Hall of The Washington Post wrote: "The plot—obviously derived from 'A Connecticut Yankee in King Arthur's Court'—has the customary quantum of Disney cuteness as the story unravels predictably. But it takes advantage of the situation for some funny lines."[10]Martyn Auty of The Monthly Film Bulletin stated: "Quintessentially Arthurian locations and resplendent colour quality (that owes more to the processing lab than to Northumberland) put this updated version of Mark Twain's A Connecticut Yankee in King Arthur's Court a cut above its predecessors in the current Disney craze for space-visitor yarns."[11]
The film earned theatrical rentals of $4.475 million in the United States and Canada.[3]