Erika Tiffany Smith lands on the island looking for a place to start a new resort, and a new husband.

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.

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

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!

Gilligan suggests a beauty contest to decide which of the three women will become "Ms. Castaway." Mr. Howell attempts to sabotage the other contestants by spreading glue on the stage before Mary Ann's big dance scene, and by shooting spit-wads at Ginger while she performs. The Professor blows pepper at the stage when it is Mrs. Howell's turn. Then, when all the competitions are complete, the final decision rests with the judge.....Gilligan!

The Castaways make a silent movie in the hopes that it will be discovered by someone who will rescue them.

A popular American singing group, the Mosquitoes (Bingo, Bango, Bongo, and Irving), land on the island hoping for some quiet and relaxation on a deserted island.

A mad scientist lands on the island and takes the Castaways to his castle . . . on a nearby island . . . to perform experiments on them.

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.

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.

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.

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

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.

The exiled president of a revolution-torn country visits the island.

A NASA satellite with a TV camera, accidentally lands on the island instead of the intended target: Mars. The castaways try to communicate their S.O.S. when the camera is operational. However, with the help of a Gilligan goof-up, the castaways are covered with glue and feathers, and the NASA scientists mistakenly believe they are seeing the first proof of life on Mars.

Gilligan has the winning ticket for a South American sweepstakes.

Two Russian Cosmonauts land on the island in their space capsule. Since the cosmonauts keep a tight guard on the space capsule, the castaways must come up with a way to smuggle one of them into the capsule in order to send back help after the cosmonauts are rescued.

While fishing, Gilligan pulls a WWII mine out of the lagoon. When the Professor is unable to deactivate the mine, Gilligan tows it back into the lagoon, where it harmlessly explodes.

An experimental robot launched by the Air Force parachutes onto the island. The professor reprograms the robot to walk to Hawaii ("one hundred eleven hours"), but the "lucky" rabbit's foot that Gilligan secretly stuffed into the robot causes it to malfunction upon arrival in Hawaii.

The Castaways are frightened as the sounds of battle, including hand grenades and machine guns, rock the island. The culprit turns out to be a gorilla who has found an old WWII weapons cache.

A cage containing a lion washes ashore in the lagoon. After Gilligan removes a thorn from his paw, the two become pals. When the Castaways run out of food, however, Gilligan thinks the lion has consumed the Skipper.

The radio reports that Mr. Howell has been rescued and is spending all of his money. Obviously, there is an imposter! The real Mr. Howell is frantic, and offers a reward to the person who can come up with a plan to get him back to civilization. Meanwhile, the imposter falls off a luxury liner and ends up stranded on (you guessed it!) Gilligan's Island. There the imposter conks Mr. Howell on the head with a coconut, changes clothes with him, and attempts to continue his masquerade as the millionaire.

A ghost appears on the island and tries to scare the Castaways off. The castaways turn the tables by dressing in sheets and roaming around the island to scare the visitors off the island.