The Worst Episodes of Lost in Space
Every episode of Lost in Space ranked from worst to best. Explore the Worst Episodes of Lost in Space!
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
Lowest Rated Episodes Summary
The worst episode of "Lost in Space" is "Mutiny in Space", rated 4.5/10 from 212 user votes. It was directed by Don Richardson and written by Peter Packer. "Mutiny in Space" aired on 2/1/1967 and is rated 0.2 point(s) lower than the second lowest rated, "The Questing Beast".
4.5/10 212 votes#1 - Mutiny in Space
Season 2 Episode 19 - Aired 2/1/1967
Dr. Smith's finds an alien ship and wants to use it to get back to earth, but he doesn't count for the owner of the ship admiral zahik to turn up and wreck his plans.
Director: Don Richardson
Writer: Peter Packer
4.7/10 253 votes#2 - The Questing Beast
Season 2 Episode 17 - Aired 1/11/1967
Will and Dr Smith are confronted by a knight, who says he is on a quest to seek out and destroy the beast Gundemar. Penny, meanwhile, meets Gundemar and befriends her. Will becomes the pageboy of the knight. When it is discovered that the beast is woman, the knight is unsure whether he can still kill it, leading him to question his life's future.
Director: Don Richardson
Writer: Carey Wilber
4.7/10 218 votes#3 - The Space Vikings
Season 2 Episode 20 - Aired 2/8/1967
A storm looms up and the two gloves of Thor appear from space and straight into the waiting hands of Dr. Smith. Then are then taken away to see the real Thor who will decide there fate.
Director: Ezra Stone
Writer: Margaret Brookman Hill
4.9/10 262 votes#4 - The Great Vegetable Rebellion
Season 3 Episode 23 - Aired 2/28/1968
Doctor Smith uses the Space Pod to land on a planet that the Jupiter II is passing by. It turns out that the planet has evolved in such a way that plants are the highest form of life, and some of them are quite intelligent. One of these plants, a large carrot, captures Smith and tries to change him into a plant. The Jupiter II lands and the Robinsons and West come to Smith's rescue, only to be captured themselves. Eventually they thwart the plant creature and make their escape.
Director: Don Richardson
Writer: Peter Packer
5.2/10 196 votes#5 - Castles in Space
Season 3 Episode 14 - Aired 12/20/1967
The Robinsons take in a Princess who is fleeing from a bounty hunter. Will is captured by the bounty hunter, who wants to trade the boy for the princess. the robot then comes up with a idea to save the day.
Director: Sobey Martin
Writer: Peter Packer
5.5/10 231 votes#6 - The Girl From the Green Dimension
Season 2 Episode 16 - Aired 1/4/1967
Athena the girl from the green dimension who hypnotised Dr Smith during thier space flight arrives on the planet. She still is in love with Dr Smith, which he uses to bribe her to help him see the future. However, he promises to go back to the green dimension with him, and when Athena's previous suitor arrives and turns Will green, Dr Smith must find a way to save himself and Will. Urso, Athena's suitor challenges Dr Smith for the lady, customary in the Green Dimension, and after seeing the future, Dr Smith fears the worst. Athena realises he cannot be with her, and leaves with Urso, but not before Urso restores Will's colour.
Director: Nathan H. Juran
Writer: Peter Packer
5.5/10 213 votes#7 - The Toymaker
Season 2 Episode 18 - Aired 1/25/1967
Dr Smith discovers another Android Machine, in the middle of a dangerous fisher. When he tries to order something, he is trapped inside the machine. Later when Will tries to get him out, he too is sucked in. Zumdish arrives on the planet in order to destroy the faulty, forgotten machine. Meanwhile Will and Dr Smith discover the magical Toymaker's world, as they are mistekn for toys. They later discover they are close to earth. Will they return to Earth, be blown up, or Will Professor Robinson and the Robot be able to save them.
Director: Robert Douglas
Writer: Bob Duncan, Wanda Duncan
5.5/10 190 votes#8 - Princess of Space
Season 3 Episode 17 - Aired 1/10/1968
A crew led by Captain Kraspo is searching for the missing Princess Alpha. They bring Will aboard their ship who makes them think the Penny might be there princess, because of this the train Penny to be the future ruler of there planet.
Director: Don Richardson
Writer: Jackson Gillis
5.6/10 192 votes#9 - Space Beauty
Season 3 Episode 21 - Aired 2/14/1968
The galactic showman, Farnum B returns as the producer of the Miss Galaxy Beauty Pageant. They want to Judy to be in the contest, she doesn't want to but Dr. Smith for forges her name and the fun begins.
Director: Irving J. Moore
Writer: Jackson Gillis
5.6/10 199 votes#10 - Junkyard in Space
Season 3 Episode 24 - Aired 3/6/1968
The Jupiter 2 lands on a planet which serves as a junkyard. The Robinson's food supply is dwindling. So Dr. Smith tries to sell the robot and the ship in order to get food. Can Dr.Smith be stopped?
Director: Ezra Stone
Writer: Barney Slater
5.7/10 200 votes#11 - Rocket to Earth
Season 2 Episode 21 - Aired 2/15/1967
The crew are outside playing ball when a magician called Zalto. Dr. Smith uses Zalto to conjure up a space ship so he can use it to get back to earth.
Director: Don Richardson
Writer: Barney Slater
5.7/10 206 votes#12 - Collision of Planets
Season 3 Episode 9 - Aired 11/8/1967
The Robinson's come across a group of space hippies who are trying to destroy the planet the Robinson's currently inhabit. Up up to the Robinson's and Dr. Smith to stop them or they will all be doomed.
Director: Don Richardson
Writer: Peter Packer
5.7/10 200 votes#13 - A Day at the Zoo
Season 3 Episode 12 - Aired 11/29/1967
A caveboy appears and attempts to lure Penny away, but she refuses, and is instead caught in a net. She is transported to an intergalactic zoo, were she will be puton show, meanwhile Dr. Smith tries to take over the zoo.
Director: Irving J. Moore
Writer: Jackson Gillis
5.7/10 194 votes#14 - Two Weeks in Space
Season 3 Episode 13 - Aired 12/13/1967
Two aliens, who are actually intergalactic bank robbers, transform themselves into Earthlings. They revive a man named Zumdish who operates a tour agency and they pretend to be his clients. The Robinson's head off and Dr. Smith is left alone, Smith's decides to turn the ship into a hotel and doesn't realize how dangerous his guests are.
Director: Don Richardson
Writer: Robert Hamner
5.8/10 224 votes#15 - West of Mars
Season 2 Episode 11 - Aired 11/11/1966
Dr Smith is confronted by an identical look-alike called Zeno, who is on the run from the law. Zeno makes him trade places and Dr Smith, out of fear confesses to Zeno's crimes. He is arrested and he and Will taken away to appear in court. Will the real Zeno be caught before Dr Smith is boiled in oil?
Director: Nathan H. Juran
Writer: Michael Fessier
6.0/10 222 votes#16 - The Thief from Outer Space
Season 2 Episode 9 - Aired 11/9/1966
A person know as ' the thief from outer space' appears in a puff of smoke, will agrees help help him rescue a princess who was lost more than 200 years ago by evil vizier.
Director: Sobey Martin
Writer: Jackson Gillis
6.0/10 223 votes#17 - The Curse of Cousin Smith
Season 2 Episode 10 - Aired 11/16/1966
When Dr Smith's cousin Jeremiah Smith arrives on the planet, everyone welcomes him, except Dr Smith. Dr Smith alienates himself from the family, and refuses to return until his cousin leaves. It is later discovered that Jeremiah's reaosns for being on the planet are far deadlier than anyone imagined.
Director: Jus Addiss
Writer: Barney Slater
6.1/10 223 votes#18 - Space Circus
Season 2 Episode 5 - Aired 10/12/1966
The Space Family Robinson go through a food crisis when their plant purifier breaks down. Will and Dr Smith discover a travelling show of circus people, and Will is later tricked in to agreeing to join. It's a race against time for the Robinsons to save will, and keep themselves alive.
Director: Harry Harris
Writer: Bob Duncan, Wanda Duncan
6.1/10 189 votes#19 - Treasure of the Lost Planet
Season 2 Episode 23 - Aired 3/1/1967
Alonzo P. Tucker returns, this time more in keeping with the pirate character he tried to create in his first appearance. This time Tucker is searching for Billy Bones' treasure, and is using the head of Billy Bones, which is kept in a box, to help him find it. He has three cutthroats with him, and he has to find the treasure and keep the cutthroats from endangering the Robinsons. Tucker's robotic bird is back again, and continues to torment the robot.
Director: Harry Harris
Writer: Carey Wilber
6.1/10 169 votes#20 - The Flaming Planet
Season 3 Episode 22 - Aired 2/21/1968
Dr. Smith disposes of a plant that has grown out of control, but once outside the plant attaches itself to the Jupiter 2. The plant apparently believe that Dr. Smith is its mother, meanwhile the ship is attached by a brave space warrior.
Director: Don Richardson
Writer: Barney Slater
6.2/10 212 votes#21 - The Haunted Lighthouse
Season 3 Episode 7 - Aired 10/18/1967
Before leaving their planet, the Robinsons meet a boy alien called J-5. They take him with them to return him to his home planet. They meet a strange ship, which turns out to be an earth ""lighthouse"" for lost ships. Thinking this ship will help them with extra fuel and star charts they celebrate, however when J-5 learns that they don't have enough fuel to take him home, he angrily sets about to destroy them all with a creation of his imagination. J-5 begins a new life at the lighthouse, and the Robinson's leave in the knowledge he will be looked after by the kindly, old lighthousekeeper.
Director: Sobey Martin
Writer: Jackson Gillis
6.3/10 213 votes#22 - The Deadly Games of Gamma 6
Season 2 Episode 8 - Aired 11/2/1966
When a troope of Galactic Gladiators arrive on the planet, they challenge Professor Robinson to a duel, which will be aired all of the galaxy. John declines saying he isn't interested in physical combat. Dr Smith takes up the offer when he makes a deal that if he wins, he will be returned to Earth. Unbeknownst to him, if he loses, which is a near-certanty, Earth will be destroyed.
Director: Nathan H. Juran, Harry Harris
Writer: Barney Slater
6.3/10 197 votes#23 - The Astral Traveler
Season 2 Episode 29 - Aired 4/12/1967
Dr Smith and Will become trapped in a cave during a cosmic storm. Will is accidently pulled through a cosmic time warp, and ends up on Earth, in Scottish castle. He meets a headless ghost called Hamish who was beheaded at the Castle. Hamish is trapped there due to the callous crimes he has committed. They rest of the family manage to get Will out, but Hamish follows him. They decide to re-create the time warp, and send Hamish home, and with him Dr Smith, carrying star-charts and maps so that he may send a rescue mission to save the Robinsons. Upon re-entering the warp, Dr Smith drops the charts, and Will runs after him to give them to him. They are both taken. When they reach the castle again, Dr Smith and Will realise that they are not in their time. Also, Hamish becomes angry when he realises that Dr Smith is a liar, and has no intention of helping the Robinsons. As an act of reveng he sets out to destroy Dr Smith. In the end, Will and Dr Smith return to the planet, and Ha
Director: Don Richardson
Writer: Carey Wilber
6.3/10 184 votes#24 - The Space Primevals
Season 3 Episode 5 - Aired 10/4/1967
The primitive beings are actually wards of a computer, Protinius, which can confer temporary advanced sentience on the leading man in order to communicate Protinius' will. The episode also features a temporary camaraderie between Don and Smith, a burying of the hatchet, when Don is rescued by Smith from a pit, and then says ""Doctor Smith"" - using the word Doctor for the first time unknown ages. However, their camaraderie dissolves and the characters are back to ""normal"". Not the first time Smith has become selfless and a man of some integrity, but as usual, Smith returns to normal.
Director: Nathan H. Juran
Writer: Peter Packer
6.3/10 181 votes#25 - Deadliest of the Species
Season 3 Episode 11 - Aired 11/22/1967
The Robinsons encounter two Aliens who are on a mission to seek and destroy an escaped Robot Prisoner, whom they believe to be hiding at the Jupiter Two. Meanwhile, the Robot meets and falls in love with this evil, female Robot. She tries to turn the Robot bad, but ultimately, is defeated by the Robot and the Robinsons, but not before wreaking havoc over the planet.
Director: Don Richardson
Writer: Robert Hamner