The Jetsons Meet the Flintstones

Exhausted from work, George Jetson piles his family into a time machine invented by his son, Elroy, never dreaming it might actually work. After landing outside Bedrock, the family is rescued by the prehistoric Flintstones and the Rubbles, who give the Jetsons shelter in exchange for some high-tech help, as Fred and Barney are having job troubles of their own. Due to a technical glitch, Fred and friends wind up in the Jetsons' futuristic home with Rosie the Robot and an angry Mr. Spacely, while the Jetson clan stages a Bedrock takeover. (official distributor synopsis)