S05E08: Dr. Sinister
Fred and Barney become enmeshed in international spyjinks when they inadvertently become involved with a beautiful foreign agent and the villainous Dr. Sinister, who is intent on world domination.
Previous Episode 
Season 1
The Flintstone Flyer
S1E1 / 30 Sep 1960
Hot Lips Hannigan
S1E2 / 07 Oct 1960
The Swimming Pool
S1E3 / 14 Oct 1960
No Help Wanted
S1E4 / 21 Oct 1960
The Split Personality
S1E5 / 28 Oct 1960
The Monster from the Tar Pits
S1E6 / 04 Nov 1960
The Babysitters
S1E7 / 11 Nov 1960
At the Races
S1E8 / 18 Nov 1960
The Engagement Ring
S1E9 / 25 Nov 1960
Hollyrock, Here I Come
S1E10 / 02 Dec 1960
The Golf Champion
S1E11 / 09 Dec 1960
The Sweepstakes Ticket
S1E12 / 16 Dec 1960
The Drive-in
S1E13 / 23 Dec 1960
The Prowler
S1E14 / 30 Dec 1960
The Girls' Night Out
S1E15 / 06 Jan 1961
Arthur Quarry's Dance Class
S1E16 / 13 Jan 1961
The Big Bank Robbery
S1E17 / 20 Jan 1961
The Snorkasaurus Hunter
S1E18 / 27 Jan 1961
The Hot Piano
S1E19 / 03 Feb 1961
The Hypnotist
S1E20 / 10 Feb 1961
Love Letters on the Rocks
S1E21 / 17 Feb 1961
The Tycoon
S1E22 / 24 Feb 1961
The Astra' Nuts
S1E23 / 03 Mar 1961
The Long, Long Weekend
S1E24 / 10 Mar 1961
In the Dough
S1E25 / 17 Mar 1961
The Good Scout
S1E26 / 24 Mar 1961
Rooms for Rent
S1E27 / 31 Mar 1961
Fred Flintstone: Before and After
S1E28 / 07 Apr 1961
Season 2
The Hit Song Writers
S2E1 / 15 Sep 1961
Droop Along Flintstone
S2E2 / 22 Sep 1961
The Missing Bus
S2E3 / 29 Sep 1961
Alvin Brickrock Presents
S2E4 / 06 Oct 1961
Fred Flintstone Woos Again
S2E5 / 13 Oct 1961
The Rock Quarry Story
S2E6 / 20 Oct 1961
The Soft Touchables
S2E7 / 27 Oct 1961
Flintstone of Prinstone
S2E8 / 03 Nov 1961
The Little White Lie
S2E9 / 10 Nov 1961
Social Climbers
S2E10 / 17 Nov 1961
The Beauty Contest
S2E11 / 01 Dec 1961
The Masquerade Ball
S2E12 / 08 Dec 1961
The Picnic
S2E13 / 15 Dec 1961
The House Guest
S2E14 / 22 Dec 1961
The X-Ray Story
S2E15 / 29 Dec 1961
The Gambler
S2E16 / 05 Jan 1962
A Star is Almost Born
S2E17 / 12 Jan 1962
The Entertainer
S2E18 / 19 Jan 1962
Wilma's Vanishing Money
S2E19 / 26 Jan 1962
Feudin' and Fussin'
S2E20 / 02 Feb 1962
Impractical Joker
S2E21 / 09 Feb 1962
Operation Barney
S2E22 / 16 Feb 1962
The Happy Household
S2E23 / 23 Feb 1962
Fred Strikes Out
S2E24 / 02 Mar 1962
This is Your Lifesaver
S2E25 / 09 Mar 1962
Trouble-In-Law
S2E26 / 16 Mar 1962
The Mailman Cometh
S2E27 / 23 Mar 1962
The Rock Vegas Story
S2E28 / 30 Mar 1962
Divided We Sail
S2E29 / 06 Apr 1962
Kleptomaniac Caper
S2E30 / 13 Apr 1962
Latin Lover
S2E31 / 20 Apr 1962
Take Me Out to the Ball Game
S2E32 / 27 Apr 1962
Season 3
Dino Goes Hollyrock
S3E1 / 14 Sep 1962
Fred's New Boss
S3E2 / 21 Sep 1962
Barney the Invisible
S3E3 / 28 Sep 1962
Bowling Ballet
S3E4 / 05 Oct 1962
The Twitch
S3E5 / 12 Oct 1962
Here's Snow in Your Eyes
S3E6 / 19 Oct 1962
The Buffalo Convention
S3E7 / 26 Oct 1962
The Little Stranger
S3E8 / 02 Nov 1962
Baby Barney
S3E9 / 09 Nov 1962
Hawaiian Escapade
S3E10 / 16 Nov 1962
Ladies' Day
S3E11 / 23 Nov 1962
Nuttin' But the Tooth
S3E12 / 30 Nov 1962
High School Fred
S3E13 / 07 Dec 1962
Dial S for Suspicion
S3E14 / 14 Dec 1962
Flash Gun Freddie
S3E15 / 21 Dec 1962
The Kissing Burglar
S3E16 / 04 Jan 1963
Wilma, the Maid
S3E17 / 11 Jan 1963
The Hero
S3E18 / 18 Jan 1963
The Surprise
S3E19 / 25 Jan 1963
Mother-In-Law's Visit
S3E20 / 01 Feb 1963
Foxy Grandma
S3E21 / 08 Feb 1963
Fred's New Job
S3E22 / 15 Feb 1963
The Blessed Event
S3E23 / 22 Feb 1963
Carry On, Nurse Fred
S3E24 / 01 Mar 1963
Ventriloquist Barney
S3E25 / 08 Mar 1963
The Big Move
S3E26 / 22 Mar 1963
Swedish Visitors
S3E27 / 29 Mar 1963
The Birthday Party
S3E28 / 05 Apr 1963
Season 4
Ann-Margrock Presents
S4E1 / 19 Sep 1963
Groom Gloom
S4E2 / 26 Sep 1963
Little Bamm-Bamm
S4E3 / 03 Oct 1963
Dino Disappears
S4E4 / 10 Oct 1963
Fred's Monkeyshines
S4E5 / 17 Oct 1963
The Flintstone Canaries
S4E6 / 24 Oct 1963
Glue for Two
S4E7 / 31 Oct 1963
Big League Freddie
S4E8 / 07 Nov 1963
Old Lady Betty
S4E9 / 14 Nov 1963
Sleep On, Sweet Fred
S4E10 / 21 Nov 1963
Kleptomaniac Pebbles
S4E11 / 28 Nov 1963
Daddy's Little Beauty
S4E12 / 05 Dec 1963
Daddies Anonymous
S4E13 / 12 Dec 1963
Peek-a-Boo Camera
S4E14 / 19 Dec 1963
Once Upon a Coward
S4E15 / 26 Dec 1963
Ten Little Flintstones
S4E16 / 02 Jan 1964
Fred el Terrifico
S4E17 / 09 Jan 1964
Bedrock Hillbillies
S4E18 / 16 Jan 1964
Flintstone and the Lion
S4E19 / 23 Jan 1964
Cave Scout Jamboree
S4E20 / 30 Jan 1964
Room for Two
S4E21 / 06 Feb 1964
Ladies' Night at the Lodge
S4E22 / 13 Feb 1964
Reel Trouble
S4E23 / 20 Feb 1964
Son of Rockzilla
S4E24 / 27 Feb 1964
Bachelor Daze
S4E25 / 05 Mar 1964
Operation Switchover
S4E26 / 12 Mar 1964
Season 5
Hop Happy
S5E1 / 17 Sep 1964
Monster Fred
S5E2 / 24 Sep 1964
Itty Bitty Fred
S5E3 / 01 Oct 1964
Pebbles' Birthday Party
S5E4 / 08 Oct 1964
Bedrock Rodeo Round-Up
S5E5 / 15 Oct 1964
Cinderellastone
S5E6 / 22 Oct 1964
A Haunted House is Not a Home
S5E7 / 29 Oct 1964
Dr. Sinister
S5E8 / 05 Nov 1964
The Gruesomes
S5E9 / 12 Nov 1964
The Most Beautiful Baby in Bedrock
S5E10 / 19 Nov 1964
Dino and Juliet
S5E11 / 26 Nov 1964
King for a Night
S5E12 / 03 Dec 1964
Indianrockolis 500
S5E13 / 10 Dec 1964
Adobe Dick
S5E14 / 17 Dec 1964
Christmas Flintstone
S5E15 / 25 Dec 1964
Fred's Flying Lesson
S5E16 / 01 Jan 1965
Fred's Second Car
S5E17 / 08 Jan 1965
Time Machine
S5E18 / 15 Jan 1965
The Hatrocks and the Gruesomes
S5E19 / 22 Jan 1965
Moonlight and Maintenance
S5E20 / 29 Jan 1965
Sheriff for a Day
S5E21 / 05 Feb 1965
Deep in the Heart of Texarock
S5E22 / 12 Feb 1965
The Rolls Rock Caper
S5E23 / 19 Feb 1965
Superstone
S5E24 / 26 Feb 1965
Fred Meets Hercurock
S5E25 / 05 Mar 1965
Surfin' Fred
S5E26 / 12 Mar 1965
Season 6
No Biz Like Show Biz
S6E1 / 17 Sep 1965
The House that Fred Built
S6E2 / 24 Sep 1965
The Return of Stony Curtis
S6E3 / 01 Oct 1965
Disorder in the Court
S6E4 / 08 Oct 1965
Circus Business
S6E5 / 15 Oct 1965
Samantha
S6E6 / 22 Oct 1965
The Great Gazoo
S6E7 / 29 Oct 1965
Rip Van Flintstone
S6E8 / 05 Nov 1965
The Gravelberry Pie King
S6E9 / 12 Nov 1965
The Stonefinger Caper
S6E10 / 19 Nov 1965
The Masquerade Party
S6E11 / 26 Nov 1965
Shinrock-A-Go-Go
S6E12 / 03 Dec 1965
Royal Rubble
S6E13 / 10 Dec 1965
Seeing Doubles
S6E14 / 17 Dec 1965
How to Pick a Fight With Your Wife Without Really Trying
S6E15 / 07 Jan 1966
Fred Goes Ape
S6E16 / 14 Jan 1966
The Long, Long, Long Weekend
S6E17 / 21 Jan 1966
Two Men on a Dinosaur
S6E18 / 04 Feb 1966
The Treasure of Sierra Madrock
S6E19 / 11 Feb 1966
Curtain Call at Bedrock
S6E20 / 18 Feb 1966
Boss for a Day
S6E21 / 25 Feb 1966
Fred's Island
S6E22 / 04 Mar 1966
Jealousy
S6E23 / 11 Mar 1966
Dripper
S6E24 / 18 Mar 1966
My Fair Freddy
S6E25 / 25 Mar 1966
The Story of Rocky's Raiders
S6E26 / 01 Apr 1966
Alan Reed
Fred Flintstone (voice)
Mel Blanc
Barney Rubble (voice)
Jean Vander Pyl
Wilma Flintstone (voice)
Gerry Johnson
Betty Rubble (voice)
