Thunderbirds — 1965-1966 · 2 seasons · 32 eps

★ 7.9

Thunderbirds

1965-1966 2 seasons 32 episodes

★ 7.9 (5,575 votes) Top 32%

Thunderbirds is a 1960s British science-fiction television series which was produced using a mixed method of marionette puppetry and scale-model special effects termed "Supermarionation". The series is set in the 21st century and follows the exploits of International Rescue, a secret organization formed to save people in mortal danger with the help of technologically advanced land, sea, air and space vehicles and equipment, launched from a hidden base on Tracy Island in the South Pacific Ocean.

Episode Ratings Grid

Every episode at a glance, color-coded by rating. Rows are episode numbers within each season, columns are seasons.

Size: M

S1

S2

E1

8.1

7.5

E2

7.3

7.1

E3

7.7

6.6

E4

7.9

6.7

E5

7.1

7.0

E6

7.3

6.4

E7

7.3

E8

6.9

E9

7.2

E10

7.5

E11

7.6

E12

7.4

E13

7.4

E14

7.0

E15

7.2

E16

7.2

E17

7.4

E18

6.7

E19

7.0

E20

7.1

E21

6.9

E22

7.4

E23

7.6

E24

7.0

E25

7.3

E26

5.6

Avg

7.2

6.9

Great

Good

Mid

Bad

Episode Power Rankings

The best and worst episodes at a glance. Use this to find must-watch episodes or ones you might want to skip.

🏆 Top Episodes

#1 8.1

S1E1 Trapped in the Sky

#2

S1E4 7.9

Terror in New York City

#3

S1E3 7.7

The Perils of Penelope

4. S1E11 "Sun Probe" 7.6
5. S1E23 "Attack of the Alligators!" 7.6
6. S1E10 "The Uninvited" 7.5
7. S2E1 "Atlantic Inferno" 7.5
8. S1E12 "Operation Crash-Dive" 7.4
9. S1E13 "Vault of Death" 7.4
10. S1E17 "The Man from MI.5" 7.4

📉 Bottom Episodes

#32

S1E26 5.6

Security Hazard

31. S2E6 "Give or Take a Million" 6.4
30. S2E3 "Alias Mr. Hackenbacker" 6.6
29. S2E4 "Lord Parker's 'Oliday" 6.7
28. S1E18 "Cry Wolf" 6.7

The Quality Arc

Each point is an episode, plotted chronologically. The colored bands mark season boundaries. Look for upward or downward trends to see if quality improved or declined over time.

Trend

Episode Engagement

Vote count shows how many people cared enough to rate. High votes + high rating = beloved classic. High votes + low rating = notorious stinker. Low votes + high rating = hidden gem.

Rating threshold:

6 Standouts

10 Infamous

1 Hidden Gems

15 Forgettable

Top Standout: S1E1 Trapped in the Sky

Most Infamous: S1E2 Pit of Peril

Best Hidden Gem: S2E1 Atlantic Inferno

Episodes plotted by rating vs. vote count. The vertical line marks the rating threshold (7.5). More votes = more engagement. Toggle above to compare against global or show-specific median.

Season Momentum

Did each season build momentum or fizzle out? Green arrows mean the finale rated higher than the premiere. Red means the opposite. Longer arrows = bigger swings.

Season Consistency

Some seasons are reliable bangers. Others are hit-or-miss. Each dot is an episode. Tightly clustered dots mean consistent quality. Scattered dots mean a mixed bag.

Each dot is an episode. Clustered dots = consistent quality. Scattered dots = variable season. Hover for episode details.