Lost in Space (1965)

Adventure · Comedy · Family

The space family Robinson is sent on a five-year mission to find a new planet to colonise. The voyage is sabotaged time and again by an inept stowaway, Dr. Zachary Smith. The family's spaceship, Jupiter II, also carries a friendly robot who endures an endless stream of abuse from Dr. Smith, but is a trusted companion of young Will Robinson

IMDb rating: 7.3 (10,008 votes)
Episode average: 6.8 -0.5 vs IMDb
Seasons: 3
Language: EN
Type: TV series

U-shaped trajectory: strong first and last seasons, a sag between. Rising Shows ranks whole shows by the shape of their rating trend rather than one average score, which is how you find a show that got better rather than a show that started well. See every U-shaped show in the explorer →

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Ratings refreshed Oct 3, 2026 · 3 seasons indexed

Cast

Seasons

Season 1 (1965)

7.42 avg 30 episodes 7.6 → 8.2 50 min avg

Season 1 episodes - IMDb ratings
#	Title	Rating	Votes
0	No Place to Hide	7.6	385
1	The Reluctant Stowaway	7.9	517
2	The Derelict	7.2	406
3	Island in the Sky	7.6	374
4	There Were Giants in the Earth	7.7	378
5	The Hungry Sea	8.0	371
6	Welcome Stranger	7.0	351
7	My Friend, Mr. Nobody	7.9	414
8	Invaders from the Fifth Dimension	7.8	350
9	The Oasis	6.7	320
10	The Sky Is Falling	7.3	343
11	Wish Upon a Star	7.9	343
12	The Raft	6.9	298
13	One of Our Dogs Is Missing	6.7	302
14	Attack of the Monster Plants	7.1	307
15	Return from Outer Space	8.3	433
16	The Keeper: Part 1	8.2	346
17	The Keeper: Part 2	7.9	316
18	The Sky Pirate	6.5	304
19	Ghost in Space	6.9	290
20	War of the Robots	8.0	339
21	The Magic Mirror	7.4	340
22	The Challenge	7.7	317
23	The Space Trader	6.8	274
24	His Majesty Smith	7.3	281
25	The Space Croppers	6.5	312
26	All That Glitters	7.4	294
27	The Lost Civilization	7.0	300
28	A Change of Space	7.3	273
29	Follow the Leader	8.2	318

Season 2 (1966)

6.45 avg 30 episodes 7.0 → 6.9 50 min avg

Rollercoaster

Season 2 episodes - IMDb ratings
#	Title	Rating	Votes
1	Blast Off Into Space	7.0	278
2	Wild Adventure	7.0	289
3	The Ghost Planet	7.3	258
4	Forbidden World	6.5	263
5	Space Circus	6.2	261
6	The Prisoners of Space	7.6	272
7	The Android Machine	7.2	270
8	The Deadly Games of Gamma 6	6.4	249
9	The Thief from Outer Space	6.2	265
10	Curse of Cousin Smith	6.1	262
11	West of Mars	5.9	268
12	A Visit to Hades	6.7	292
13	Wreck of the Robot	7.3	242
14	The Dream Monster	6.8	237
15	The Golden Man	6.9	265
16	The Girl from the Green Dimension	5.6	271
17	The Questing Beast	4.8	289
18	The Toymaker	5.7	248
19	Mutiny in Space	4.6	248
20	The Space Vikings	4.8	254
21	Rocket to Earth	5.8	232
22	The Cave of the Wizards	6.6	241
23	Treasure of the Lost Planet	6.2	223
24	Revolt of the Androids	7.0	246
25	The Colonists	6.6	239
26	Trip Through the Robot	7.6	269
27	The Phantom Family	6.9	238
28	The Mechanical Men	6.9	236
29	The Astral Traveler	6.5	232
30	The Galaxy Gift	6.9	233

Season 3 (1967)

6.59 avg 24 episodes 7.4 → 5.8 51 min avg

Season 3 episodes - IMDb ratings
#	Title	Rating	Votes
1	Condemned of Space	7.4	262
2	Visit to a Hostile Planet	7.8	312
3	Kidnapped in Space	6.6	222
4	Hunter's Moon	7.3	236
5	The Space Primevals	6.5	218
6	Space Destructors	7.2	230
7	The Haunted Lighthouse	6.4	248
8	Flight Into the Future	7.5	223
9	Collision of Planets	5.8	241
10	Space Creature	7.5	229
11	Deadliest of the Species	6.4	208
12	A Day at the Zoo	5.8	231
13	Two Weeks in Space	5.8	229
14	Castles in Space	5.3	230
15	The Anti-Matter Man	8.4	314
16	Target Earth	7.1	217
17	Princess of Space	5.5	220
18	Time Merchant	7.5	235
19	The Promised Planet	6.7	286
20	Fugitives in Space	6.6	238
21	Space Beauty	5.8	224
22	The Flaming Planet	6.2	193
23	The Great Vegetable Rebellion	5.2	299
24	Junkyard in Space	5.8	229

Lost in Space (1965)

Cast

Seasons

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