The Jetsons Meet the Flintstones is a 1987 animated crossover made-for-television film produced by Hanna-Barbera for syndication as part of the Hanna-Barbera Superstars 10 series. The two-hour special stars the cast of the Hanna-Barbera sitcoms The Flintstones and The Jetsons as they cross paths following a time travel experiment gone wrong. In the future, while Elroy is busy working on a time machine, George Jetson comes to Mr. Spacely's office for a serious discussion. Spacely's rival, Cogswell, has been stealing Spacely's business ideas, putting their jobs in jeopardy. Spacely wrongfully blames George, suspecting that he was spying for Cogswell. Spacely orders George to spy on Cogswell to clear his name to avoid getting fired. George finds out that Cogswell's robot computer, S.A.R.A., has been seducing the Spacely robot computer, R.U.D.I., into leaking Mr. Spacely's secrets. George tries to report this to Spacely, but R.U.D.I. sabotages his efforts. In the Stone Age, Wilma and Betty are trying to convince Fred Flintstone to have their vacation in Honolurock (Honolulu), but Fred ignores their efforts. Later, at work, Fred tells Barney Rubble that he plans to vacation somewhere even better, and that he wishes to attend a poker tournament being held at the Water Buffalo lodge (where they are members with meetings) later that day. However, Mr. Slate shows up and informs the duo that they must work the late shift because they're going on vacation, and Turk Tarpit, Slate's business rival and nemesis, has been outproducing them. Fred and Barney disobey Slate's orders and go to the poker tournament. However, after seeing that Slate is playing there too, they disguise themselves. Fred plays against Slate but loses. A spider exposes Barney, and ultimately Fred. Furious that they deceived and disobeyed him, Slate fires Fred and Barney. Back in the future, Elroy completes his time machine. The Jetsons decide to use it to take a trip to the 25th century to relax. Right before Elroy gets the machine working, his dog, Astro, accidentally sets the switch to "Past.