Fred inherits an estate, when he goes to claim it reignites a long time feud with a hillbilly family.
Zeke, the last of the Arkanstone Flintstones, dies, leaving the same state's Hatrock clan, which has been feuding joyously for generations with Zeke's family, desperate for more Flintstones to shoot at with their stone-firing rifles. Zeke's only known surviving relations are the Flintstones of Bedrock, and Fred is contacted by an Arkanstone lawyer and informed that he has inherited Zeke's "estate", San Cemente (known as Sandstone Cemente), which Fred believes to be the lavish bequest of wealthy kin.
The Flintstones and the Rubbles go to Arkanstone to view Zeke's legacy and are staggered to discover that San Cemente is a one-room, dilapidated house adorned only with a picture of the late Zeke. The Hatrocks commence rifle fire upon the confused Flintstones and Rubbles, and Fred and Barney are forced to defend their loved ones by combating the Hatrocks (with the stone-firing rifles that they have brought with them for hunting purposes), and the Hatrock-Flintstone feud continues, until Pebbles and Slab, the Hatrock baby, wander away from their respective folk and Fred risks his life to prevent the two toddlers from plummeting on a log down a waterfall, by dangling by his legs upside down from a branch directly above the top of the waterfall and grabbing the babies from the log.
A resultant truce between the Hatrocks and Flintstones is short-lived. Fred repeats the faux-pas of Rory Flintstone that first started the feud, by commenting that the artist of a portrait of Mona, the Hatrock matriarch, "...should have got life," in prison that is, for the unsightly painting. Hatrocks re-declare hostilities upon Flintstones, who scramble with the Rubbles to board their car and flee Arkanstone.
- Fred Flintstone
- Wilma Flintstone
- Barney Rubble
- Betty Rubble
- Pebbles Flintstone
- Mr. Slate
- Zeke Flintstone (only appearance)
- Sam Kettlequartz (only mentioned)
- Shystone (only appearance)
- Ms. Shelley (only appearance)
- Jethro Hatrock (first appearance)
- Granny Hatrock (first appearance)
- Mona Hatrock (only appearance)
- Clem Hatrock (only appearance)
- Gravella Hatrock (only appearance)
- Slab Hatrock (first appearance)
- Zack Hatrock (first appearance)
- Percy Hatrock (first appearance)
- Maybelle Hatrock (only appearance)
- Benjy Hatrock (only appearance)
- Arkanstone Filling Station
- Arkanstone Cemetery (only appearance)
- Hatrock's house (only appearance)
- San Cemente (only appearance)
- Tennestone (only appearance)
- Cactus Cola
- Stone-firing rifles
- Brontosaurus (as Bronto-Cranes)
- Possumsaurus (only appearance)
- Pterodactyl (as a Pterodactyl leg)
- Fred's vacation car (only appearance)
|Alan Reed|| Fred Flintstone|
|Jean Vander Pyl|| Wilma Flintstone|
|Mel Blanc|| Barney Rubble|
|Bea Benaderet|| Betty Rubble|
|Doug Young|| Bamm-Bamm Rubble|
|Howard Morris|| Percy|
|John Stephenson|| Mr. Slate|
|June Foray|| Granny|
- Tennestone and Arkanstone are spoofs of the states, Tennessee and Arkansas.
- Tennestone is "wet" state and Arkanstone is a "dry" state. The reference has nothing to do with the weather; it had to do with the fact that liquor was not sold in certain states in the 1960s. Actually, Tennessee was a dry state for a long time. Bedrock is a thousand miles from Arkanstone.
- The Hatrocks are Mona; her granddaughter Granny; Clem/Pa; Clem's wife Gravella; an unnamed redhaired male who is named Zack in the other episode, "The Hatrocks and the Gruesomes"; and their cousins Benjy and Maybelle.
- The title of this episode is a spoof of the comedy series, The Beverly Hillbillies.
- None known.
|Season 4 of The Flintstones|
|"Ann-Margrock Presents" • "Groom Gloom" • "Little Bamm-Bamm" • "Dino Disappears" • "Fred's Monkeyshines" • "The Flintstone Canaries" • "Glue for Two" • "Big League Freddie" • "Old Lady Betty" • "Sleep On, Sweet Fred" • "Kleptomaniac Pebbles" • "Daddy's Little Beauty" • "Daddies Anonymous" • "Peek-a-Boo Camera" • "Once Upon a Coward" • "Ten Little Flintstones" • "Fred El Terrifico" • "The Bedrock Hillbillies" • "Flintstone and the Lion" • "Cave Scout Jamboree" • "Room for Two" • "Ladies' Night at the Lodge" • "Reel Trouble" • "Son of Rockzilla" • "Bachelor Daze" • "Operation Switchover"|