En la apertura de la serie, Gilligan y el capitan zarpan en una balsa para encontrar ayuda, pero los tiburones destruyen la nave y, sin que el desafortunado dúo lo sepa, llegan a tierra en la misma isla, donde los otros náufragos los confunden con miembros salvajes de una tribu.

Mientras esperan un huracán, los náufragos se alojan en una cabaña comunal. Mala idea. No pasa mucho tiempo antes de que se pongan los nervios de punta unos a otros. Este episodio fue dirigido por Richard Donner.

Cuando los suministros desaparecen, el capitán está seguro de que la isla está embrujada. Especialmente cuando piensa que Gilligan ha sido transformado en un chimpancé.

Tras ser hipnotizado para recordar su entrenamiento en la Marina, el Capitán intenta convertir una radio en un transmisor… con la ayuda de los náufragos, que se hacen pasar por viejos compañeros de la marina.

La posibilidad abandonar la isla renace en los náufragos cuando Gilligan halla un avión antiguo y a su piloto.

¿Presidente Gilligan? Bueno, en la isla, claro. Pero tras las elecciones, el desventurado marinero se encuentra en aguas políticamente turbulentas

A medida que el suministro de frutas y verduras disminuye, los náufragos ven con más interés al pato mascota de Gilligan, quien lo defiende en sueños al estilo western.

Todo está listo para reacondicionar el barco Minnow, gracias al pegamento hecho de savia que Gilligan cree que lo hará navegar de nuevo. O tal vez no.

Los náufragos se debaten entre la salvación y la codicia cuando Gilligan tropieza con una mina de oro, y el capitán recupera la balsa salvavidas del Minnow.

El Capitan desentierra la estatua de un dios nativo, el cual está seguro que atrae la mala suerte. Efectivamente, ocurre un terremoto.

Mr. Howell decides to put on a play, starring Ginger, after she begins to suffer from home-sickness. But trouble begins when Mrs. Howell decides she wants to play the starring role.

During Christmas, the Castaways get homesick and remember the first day they were shipwrecked. When Santa Claus "appears" on the island, many suspect he is the Skipper in costume. However, just as Santa departs while wishing the Castaways a Merry Christmas, the Skipper appears from the other direction.

Mr. Howell loses $3 million to Gilligan in a golfing contest. Mr. Howell then tricks Gilligan into trading for a worthless oil well that he owns. When the radio announces that the oil well is a gusher, Mr. Howell sets his sights on winning it back. However, just as he succeeds in winning it back, the radio announces that the gusher was a mistake!

Talk about a painful irony: though surrounded by water, the Castaways suddenly discover that their supply of fresh drinking water is running out. When they pool all available drinking water together and decide to ration it, they discover that they will each receive only a few drops per day. Of course, most of the castaways sneak water from the community supply when Gilligan is standing watch, but return it when the Skipper catches them. Just when all seems lost, Gilligan saves the day!

The Castaways are captured by a Japanese sailor who thinks that WWII never ended. When the other castaways are captured, it is up to Gilligan to save them.

While working for Mr. Howell, Gilligan unearths a chest. The castaways think it must contain a pirate's treasure. When ownership of the chest is disputed, the case goes to court, with the Professor presiding as judge.

A well known crook tries to evade police after a heist and is dropped off on the island by his henchmen to be picked up later after the heat cools down. After being discovered by Gilligan he poses as a doctor but the truth is soon revealed. Now he must keep the castaways at bay and get off the island with his money. Of course with Gilligan on the island this is much easier said than done.

In a test of a deadly new missile, called "Operation Powder Keg," the Air Force chooses an "uninhabited island" which just happens to be Gilligan's Island. When the rocket lands and does not explode, Gilligan is chosen to crawl inside to defuse it, because he is the only one that can fit inside.

Gilligan discovers a jungle boy living on the island. He shows them a hole in the ground that causes objects to float, and the professor theorizes that it is expelling either helium or hydrogen. He immediately sets to work building a large balloon, with the hopes of carrying one of them back to civilization.

Angry because the men haven't kept their promise to build them private houses, the women decide to move to the other side of the island in protest. Gilligan and the Skipper dress as a monster, in an attempt to frighten the girls and cause them to come running back.

Handsome surfer Duke Williams rides a giant tsunami to the island. At first, the castaways are excited as Duke thinks he will turn around and surf back to Hawaii (and send help). However, after seeing Mary Ann and Ginger, he decides he may want to stay for a while. The castaways must come up with a plan to make him want to leave for Hawaii.

A gorilla is enchanted by Mrs. Howell's perfume and kidnaps her. After Gilligan accidentally spills the perfume all over his shirt, the gorilla decides to release Mrs. Howell and exchange prisoners.

The castaways are revisited by 'Wrongway' Feldman.

Mrs. Howell decides to engineer a romance between Gilligan and Mary Ann.

Mrs. Howell decides to form a symphony orchestra, to make up for the lack of culture on the island. Gilligan's drum beats, as they drift across the water, hold special meaning to angry natives on a nearby island.

The Castaways overhear the voices of gangsters discussing buried treasure and threatening their lives. The voices turn out to belong to a parrot, who then leads the castaways to the "treasure" .... a box of crackers!

Mr. Howell wins all of the Skipper's possessions betting on turtle races. Even when he feels bad and switches the turtles so that Skipper will finally win, he still wins!

The Skipper insists a stone found by Gilligan will grant the finder three wishes before sundown. The professor, of course, insists it is just superstition. Two gallons of ice cream later, Gilligan has only one wish left.....and the sun is going down!

The Professor tries to cure the Skipper's amnesia by hypnotizing him and taking him through time.

The Castaways discover that Gilligan has been keeping a secret diary. When they read it, they all seem to disagree with how certain events unfolded and tell their side of the story.

Gilligan and the Skipper plan to join the Navy when they are rescued. However, when weighing themselves, they discover that Gilligan must gain weight, while the Skipper must diet.

The Castaways discover a trunk belonging to a magician. They use a magician's props to scare away unfriendly natives from nearby islands.

A famous painter who has renounced civilization, Dubov, visits the island (with a short-wave radio, of course). The castaways are hopeful that Dubov will give them his transmitter, but soon discover he does not wish to go back to civilization. They must come up with a scheme to make him change his mind, and attempt to make him jealous by pretending Gilligan is an artistic genius.

After Gilligan saves Mrs. Howell's life, Mr. Howell decides to make him his son. He immediately puts Gilligan through basic training to be a millionaire's socialite son (dream sequence), changing the way he walks, talks and dresses. However, Gilligan and the rest of the castaways miss the "old Gilligan."

A fall from a coconut tree gives Gilligan an inflated nose and a deflated ego. When Gilligan decides he wants the Professor to perform plastic surgery on his nose, the Professor pretends to perform the surgery, and instead, relies on the recuperation time behind the bandages to allow the swelling to go down. When the bandages are finally removed, Gilligan decides he is happy with his old nose!