PILOT - 2 Hours
Swiss Family Robinson	4/15/1975	The year is 1814. A Swiss pastor (Karl Robinson), his wife (Lotte), and two sons (Fred and Ernie), along with the ship captain's daughter (Helga Wagner), are shipwrecked on a remote volcanic island while on their way to begin a new life somewhere in the South Seas. On a small island, they encounter an American sailor (Jeremiah Worth) who was shipwrecked 7 years earlier. The family settles in, builds a tree-house, and learns how to survive. A fortune-seeking Englishman and his Malay pirate crew land on the island to retrieve a golden idol from the caves beneath the volcanic mountain. When Jeremiah finds and takes the idol first, Karl is forced to get the idol from Jeremiah and trade it for Lotte, who has been taken hostage by the Englishman. The Englishman dies in the volcano, and the Malays retrieve the idol to return it to their people.
SEASON 1 - 20 episodes
1. The Typhoon	9/14/1975		Afraid of the water because of his near-drowning in the shipwreck, Fred has to overcome his fear when Ernie's foot gets caught in ropes on the raft with a typhoon bearing down on the island. With Karl and Lotte away getting timber for a new mast for the raft and Jeremiah crippled with a sprained ankle, Fred dives into the lagoon to help his brother and comes to terms with his fears.
2. The Hawk	9/21/1975		Jeremiah leaves the Robinsons in anger after Helga scares his pet hawk into hitting a tree, resulting in the bird's death. When Helga is stranded on a cliff while trying to take a baby hawk from its nest for Jeremiah, he helps rescue her and reconciles with the family.
3. The Mountain	9/28/1975		Karl and Jeremiah go out to explore the far side of the island, and Jeremiah comes down with a fever and paralysis from a tick bite, so Karl carries back him over rough terrain on a litter. Meanwhile, when the men don't return on time, Lotte goes in search of them, and the three return home together.
4. Man O' War	10/5/1975		A British warship anchors off the island and sends a patrol ashore to look for two deserters. Jeremiah enlists and then finds out that he once crossed the same captain who intended to hang him on sight. With a fever on board ship and desperate for sailors, the shore patrol seizes Karl to impress him into service. Karl and Jeremiah avoid service by trading a medicinal bark for their freedom.
5. The Slave Ship	10/12/1975		A slave ship anchors off the island when its rudder breaks. A slave jumps overboard and escapes to the island. The ship's captain promises to take the Robinsons and Jeremiah to India, but when Karl discovers the ship's true cargo, he refuses to help the captain, and instead helps hide the slave. The captain takes Fred hostage and the slave, Jama, turns himself over to secure Fred's release.
6. The Pit	10/19/1975		Thinking Ernie has gone to the caves to get flint and prove to everyone that he wasn't a baby anymore, Lotte goes in search of him and gets lost in the caves. Karl, Jeremiah, and the children then go to find Lotte, who has fallen into a pit and is injured. Ernie, who had been feeling useless because of his age, is the only one who can help his injured mother because of his size.
7. The Tiki	10/26/1975		Fred and Ernie discover a native ceremonial house filled with skulls. When Ernie returns to the hut with Helga, natives from another island capture them and Jeremiah who is searching for them. Meanwhile, Karl and Fred capture the son of the chieftain. While Karl and Lotte go to negotiate a trade with the chieftain, Fred watches the native boy. Lotte is captured when Karl returns to the tree house to fetch the boy, who has escaped from Fred. Fred chases down the boy, and saves his life. The boy then saves Fred's life when he is bitten by a spider, and the chieftain and Karl become friends.
8. Neptune's Nephew	11/2/1975		The animals are frightened of something moving around the island. Jeremiah and Helga think it's a sea monster named Neptune's Nephew, but Karl believes a tiger has swum to the island. Karl tries to trap and shoot the tiger, but fails. In the end, Karl and Jeremiah scare the animal onto a log which they push out into the lagoon, sending the tiger on its way back toward a neighboring island.
9. The Chimp	11/9/1975		Karl is bitten by a chimpanzee and, fearing he may have contracted rabies, tells Lotte to stay away from him until he and Jeremiah can capture and observe the chimp to see if it is infected.
10. The Castaway	11/16/1975		A mutineer first-mate of a ship (Leslie Nielsen) who killed his captain and is being pursued by his ship pretends to be a shipwreck survivor. He befriends Ernie, belittles Jeremiah, steals supplies, and eventually steals the Robinsons' raft to escape the island.
11. The Treasure	11/23/1975		During a picnic with the Robinsons near the volcanic mountain, Jeremiah finds a treasure map engraved in rock and goes in search of gold. When he takes too long to return, Karl goes after him and finds he fell into a pit. After getting Jeremiah out, Karl and he find the gold. Then the volcano begins to erupt, making their return difficult amidst falling rock, steam, and lava. The two are separated, and Karl accidentally drops the gold he was carrying into a lava-filled ravine while Jeremiah leaves his gold behind to rescue Fred from a pit. In the end, with no gold but safe at the tree house, Jeremiah realizes his wealth is his friendship with the Robinsons.
12. The Captain	11/30/1975		Helga finds a button and thinks her father also survived the shipwreck and is on the island. When muskets and gunpowder are stolen from the Robinsons, Helga and Fred go to the sea caves to search for her father. They find a delusional Dutch captain whose ship went down three weeks earlier. He takes Helga and Fred on as the crew of his make-believe ship formed out of a cliff. When a fire starts accidentally, the gun powder explodes, mortally injuring the captain, who is given a burial at sea by the Robinsons.
13. The Bell	12/7/1975		Returning from a hike to explore the other side of the island, Jeremiah and the Robinsons hear the sound of a ringing bell. Exploring, they discover a temple and tomb with Egyptian-like symbols on the walls and floor. They determine that the bell, somehow, rings just before earth tremmers could be felt, showing how intelligent the ancient inhabitants of the island must have been. They gain an appreciation for the accomplishments of this ancient people deemed "savages" by European standards.
14. Ernie's Christmas	12/21/1975		For Ernie's sake, Jeremiah and the Robinsons try to celebrate a traditional Christmas despite their locale by decorating a "Christmas tree," putting up a nativity set carved by Jeremiah, and making a sled (with wheels) for Ernie. Christmas is almost ruined when Helga is bitten by a sea urchin, but she recovers in time for a Christmas celebration complete with "plum" pudding. Ernie learns the true meaning of Christmas, having loved ones safe and sound.
15. The Operation	1/4/1976		Fred gets appendicitis and Karl realizes he will only survive if his appendix is removed. He needs the ship's surgeon's medical book and instruments to operate, but the ship is sunk in deep waters and he can't stay underwater long enough to find what he needs. So, Karl invents a diving helmet using a bellows, rubber-coated sailcloth, a basket, glass, and bamboo to enable him to breathe underwater. With the help of Jeremiah and Lotte, he secures what he needs from the shipwreck and successfully removes Fred's appendix. Through the ordeal, Ernie learns how much his brother really means to him.
16. The Wild Dog	1/11/1976		When wild dogs repeatedly attack their chickens and livestock, Karl and Jeremiah set traps. They capture Job, a dog from the wrecked ship who has gone wild. While carrying the caged dog back to the house, Jeremiah trips and the cage tumbles down a hill, breaking the cage and injuring Job, who runs off. Karl and Jeremiah track him down and bring him home on a litter. After the dog is healed, Ernie becomes attached to him, but Job was trained to attack men wielding muskets and can't be re-trained. Karl lets the dog loose but Job returns to stop a wild dog from attacking Ernie, and when Ernie follows him and gets stuck in quicksand, Job helps pull the boy to safety. When it's discovered Job has a mate and puppies, they let him free.
17. The Renegades	1/19/1976		Seeing smoke on the horizon, Karl and Fred paddle the raft to investigate. On a nearby island they find a native village burned by three renegade English sailors in search of Portuguese treasure left there. They want more gunpowder and shot to force the natives to turn over the jewels, which they have used to adorn their idol. So, they get Karl's and Fred's guns and head for the Robinson's island in their longboat. Karl and Fred follow in the raft and with Jeremiah's canon, Karl bluffs the men into surrendering the muskets and sends them off in their longboat. Having overtaken the men upon their return, the natives leave the longboat for the Robinsons.
18. Jean Lafitte - Part I	2/1/1976		Infamous pirate Jean Lafitte (Frank Langella) lands on the island to take his hidden treasure and guns so he can return to New Orleans to aid the American General, Andrew Jackson, against the impending British invasion. An American sailor working for the British tricks Jeremiah into revealing the treasure's location and a battle ensues between a British landing party and the American traitors against Lafitte and the Robinsons. After securing victory, Lafitte offers to take Jeremiah and the Robinsons to New Orleans, but the danger of war convinces Karl to stay on the island where his family is safe. Jeremiah decides not to leave the Robinsons.
19. Jean Lafitte - Part II	2/8/1976
20. The Devils	3/28/1976		When strange lights and sounds disrupt the island, Jeremiah fears the devil has come. Karl believes there must be a scientific explanation. When a shaman from a nearby island appears and orders the Robinsons to leave the island or lose their children, Karl fights back with some scientific "magic" of his own, a Leyden jar. He tells the shaman to return to his own island, where his magic will still be powerful, and to leave Karl and his family in peace.

Links:

Irwin Allen News Network "Swiss Family Robinson" Website
Television Obscurities "Irwin Allen's Swiss Family Robinson" Website