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20 Episodes 1975 - 1976
Episode 1
Sun, Sep 14, 197560 mins
A fierce storm shipwrecks the Robinsons on an island, abandoned by the crew. While exploring their new home Fred and Ernie find a deserted hut which puts them in peril as it a spiritual place for the natives.
Episode 2
Sun, Sep 21, 197560 mins
Jeremiah's pet hawk returns but elation soon turns to concern. The raptor's focus is on the livestock of the Robinson's especially Helga's pet goat. A difficult decision must be made by Jeremiah.

Episode 3
Sun, Oct 5, 197560 mins
Two escaped British prisoners capture Lotte and Helga, holding them hostage. Karl and his sons must find a way to rescue them without anyone getting injured.
Episode 4
Sun, Oct 19, 197560 mins
Ernie goes missing and the rest of the castaways fan out in a search for him. Mother Lotte finds a cave and while looking there is trapped in a landslide. The rest of the group are frantic to free her.
Episode 5
Sun, Oct 26, 197560 mins
The Robinsons are again trouble with the natives as the children find an idol and keep it. Karl must lead a rescue after Helga and Ernie are taken captive in retribution for the missing religious figure.
Episode 6
Sun, Sep 28, 197560 mins
While exploring a rugged part of the island Jeremiah come down witn a life threatening illness. The Robinsons fight to keep their friend alive while getting back to their camp.
Episode 7
Sun, Nov 2, 197560 mins
A unknown creature seems to live in the jungle just beyond the Robinson's clearing. It's hostility keep the shipwrecked people from venturing very far. Karl Robinson realizes action must be taken.
Episode 8
Sun, Oct 12, 197560 mins
After the Robinsons rescue a man they learn that he killed the captain of his ship. Their hopes of rescue are put in doubt when they learn of the circumstances of the incident.
Episode 9
Sun, Nov 9, 197560 mins
Karl is bitten by what was thought to be a friendly chimp and his life is threatened by a subsequent illness. The rest of the Robinsons, Helga, and Jeremiah worry about their existence without the leadership of Karl.
Episode 10
Sun, Nov 30, 197560 mins
The Robinsons are excited when they encounter a recently shipwrecked Captain Anaheim. They hope he can help them get off the island but realize to late that the loss of his ship has made the Captain deranged.
Episode 11
Sun, Dec 21, 197560 mins
Karl and Lotte try to create a typical Switzerland Christmas for everyone, which is difficult on a tropical island. But the shipwrecked travelers have their celebrations interrupted and their lives put in danger.
Episode 12
Sun, Nov 16, 197560 mins
The Robinson's come across a sailor who claims to have been shipwrecked. But the family find they are harboring a man who killed the ship's captain and see their dream of returning to civilization endangered.
Episode 13
Sun, Jan 4, 197660 mins
The Robinsons, Helga, and Jeremiah uncover a hidden treasure, which leads them to imagine a great life after being rescued. But someone else wants the riches with Jeremiah endangering all when he won't relinquish his share.
Episode 14
Sun, Apr 11, 197660 mins
A pack of wild dogs appear near the Robinson's camp and begin terrorizing the castaways. As the group tries to decide on a strategy they begin to think the alpha animal was once a tame pet.
Episode 15
Sun, Jan 18, 197660 mins
Karl and Fred take a canoe to explore a nearby island in hopes of rescue. The two Robinsons stumble into a dangerous dispute between a band of brigands and natives.
Episode 16
Sun, Jan 25, 197660 mins
The Robinsons find a huge bell while on their exploration of the island. When a series of violent earthquakes strike, the group must find a way to survive amidst the disaster.
Episode 17
Sun, Feb 1, 197660 mins
The infamous Jean Lafitte and his fellow pirates appear on Robinson's island. At first fearful, Karl and Lotre begin to hope their rescue is imminent when LaFitte returns to civilization.
Episode 18
Sun, Feb 8, 197660 mins
As Jean Lafitte and his pirate band prepare to leave the Robinsons hope that it will lead to their rescue. Instead the criminals kidnap Jeremiah and his friends must figure out how to rescue Jeremiah.
Episode 19
Sun, Jan 4, 197660 mins
Fred needs lifesaving surgery and Karl realizes he will have to perform it. Karl believes the sunken ship has some of the implements he needs so the dad will have to dive for them before operating.
Episode 20
Sun, Mar 28, 197660 mins
A mysterious jungle inhabitant threatens the Robinson's well being. A series of unfortunate happenings occur that seem to be related to the dark forces released by the man. Karl believes there is a logical explanation to everything.