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 (9,940 votes)
Seasons: 3
Language: EN
Type: TV series

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Ratings refreshed Aug 19, 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	383
1	The Reluctant Stowaway	7.9	509
2	The Derelict	7.2	402
3	Island in the Sky	7.6	371
4	There Were Giants in the Earth	7.7	375
5	The Hungry Sea	8.0	367
6	Welcome Stranger	7.0	348
7	My Friend, Mr. Nobody	7.9	411
8	Invaders from the Fifth Dimension	7.8	347
9	The Oasis	6.7	317
10	The Sky Is Falling	7.3	340
11	Wish Upon a Star	7.9	339
12	The Raft	6.9	294
13	One of Our Dogs Is Missing	6.7	299
14	Attack of the Monster Plants	7.1	303
15	Return from Outer Space	8.3	428
16	The Keeper: Part 1	8.2	341
17	The Keeper: Part 2	7.9	311
18	The Sky Pirate	6.5	299
19	Ghost in Space	6.8	287
20	War of the Robots	8.0	336
21	The Magic Mirror	7.4	334
22	The Challenge	7.7	313
23	The Space Trader	6.8	269
24	His Majesty Smith	7.3	276
25	The Space Croppers	6.5	308
26	All That Glitters	7.4	288
27	The Lost Civilization	7.0	295
28	A Change of Space	7.3	269
29	Follow the Leader	8.2	312

Season 2 (1966)

6.46 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	274
2	Wild Adventure	7.1	285
3	The Ghost Planet	7.3	256
4	Forbidden World	6.5	261
5	Space Circus	6.2	258
6	The Prisoners of Space	7.6	270
7	The Android Machine	7.2	267
8	The Deadly Games of Gamma 6	6.4	244
9	The Thief from Outer Space	6.2	261
10	Curse of Cousin Smith	6.1	257
11	West of Mars	5.9	263
12	A Visit to Hades	6.7	287
13	Wreck of the Robot	7.3	239
14	The Dream Monster	6.8	235
15	The Golden Man	6.9	261
16	The Girl from the Green Dimension	5.6	268
17	The Questing Beast	4.8	287
18	The Toymaker	5.7	246
19	Mutiny in Space	4.6	245
20	The Space Vikings	4.8	252
21	Rocket to Earth	5.8	230
22	The Cave of the Wizards	6.6	239
23	Treasure of the Lost Planet	6.2	221
24	Revolt of the Androids	7.0	243
25	The Colonists	6.6	237
26	Trip Through the Robot	7.7	265
27	The Phantom Family	6.9	234
28	The Mechanical Men	6.9	232
29	The Astral Traveler	6.5	229
30	The Galaxy Gift	6.9	231

Season 3 (1967)

6.57 avg 24 episodes 7.4 → 5.8 51 min avg

Season 3 episodes - IMDb ratings
#	Title	Rating	Votes
1	Condemned of Space	7.4	260
2	Visit to a Hostile Planet	7.8	310
3	Kidnapped in Space	6.6	221
4	Hunter's Moon	7.3	233
5	The Space Primevals	6.5	212
6	Space Destructors	7.1	228
7	The Haunted Lighthouse	6.4	247
8	Flight Into the Future	7.5	222
9	Collision of Planets	5.8	240
10	Space Creature	7.5	228
11	Deadliest of the Species	6.4	207
12	A Day at the Zoo	5.8	230
13	Two Weeks in Space	5.8	227
14	Castles in Space	5.3	227
15	The Anti-Matter Man	8.4	314
16	Target Earth	7.0	217
17	Princess of Space	5.5	220
18	Time Merchant	7.5	235
19	The Promised Planet	6.7	285
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	5.1	297
24	Junkyard in Space	5.8	229

Lost in Space (1965)

Cast

Seasons

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