The castaways wake up with the Minnow beached on the island, the Skipper and Gilligan work on a raft then take off with it to find help. The professor discovers artifacts from a tribe of head hunters called the Marubi in a cave and sets a trap for the head hunters in case they show up.
The Skipper wants the castaways to build a community hut because the is a bad tropical storm on the way. However, none of them can work together so they all start building their own huts.
Gilligan stands night watch as they are unfamiliar with the island yet. During the night, someone steals from the supply hut and the Skipper believes that it is voodoo.
The Skipper starts sleepwalking and reliving a World War II experience, he thinks Gilligan is one of his Navy mates and tries to have Gilligan help him convert the receiver into a transmitter.
Gilligan discovers a airplane while going through the jungle, the plane turns out to belong to Wrongway Feldman. Feldman disappeared years before.
The Skipper and Mr. Howell run for president of the island with surprising results.
Gilligan finds a duck while a blight is hitting the island and the rest of the islanders start hungrily eyeing his pet duck.
The professor tries to make nails that can be used to repair the Minnow. A glue like sap is then discovered by Gilligan that seems to work like magic.
While doing work for Mr. Howell, Gilligan falls in a hole and discovers one of the island's valuable resources; meanwhile, the girls are fishing and latch onto a possible way off the island for the castaways.
While digging near the lagoon, the idol of Kona is discovered and the Skipper who is deeply superstitious believes that something really bad will happen unless the idol is put to rest.
Ginger is depressed because a play written especially with her in mind for the lead is not going to star her. Gilligan talks Mr. Howell into putting on the play there on the island to see if it is something he would like to produce back home. Then during practice, Mr. Howell looses track of why they are putting on the play and puts Lovey in the lead role instead of Ginger.
The castaways reminisce about things that have happened to them on the island once they hear a news broadcast about a Coast Guard cutter being on the way to rescue the Minnow survivors.
Mr. Howell ends up betting on sinking golf putts with Gilligan and Gilligan wins 3 million dollars, Mr. Howell tries to figure out a way to trick Gilligan out of the money.
The castaways well runs out of water, Gilligan is put on guard duty over the remaining water supply.
Gilligan is in the lagoon trying to catch food and see's what he thinks is a sea serpent. Later it turns out to be a Japanese world war II mini one man submarine who's pilot is not aware that World War II has been over for more than 20 years.
While digging a barbque pit for Mr. Howell, Gilligan comes across a treasure chest. A battle ensues over who's property the chest is.
A gangster comes to the island posing as a doctor.
It is a normal day on the island, the Skipper and Gilligan are working on their normal projects for their little community. Meanwhile, the Pentagon decides to test a new missile, the target they choose is the Castaways island.
Gilligan see's a jungle boy while he is out and about on the island and no one believes him when he tells the castaways about the boy.
Tired of waiting for huts of their own, the women go on strike and then it is men vs. women as the guys come up with a plan to get them back.
A surfer rides his board into the lagoon and then becomes more infatuated with Ginger and Mary Ann than returning to civilization so the castaways can be rescued.
Mrs. Howell's diamond broach disappears and then Mrs. Howell disappears.
When Gilligan's attempt to rescue Mary Ann fails and both of them has to be rescued by the Skipper, Gilligan gets a inferiority complex and the castaways devise schemes to help him feel like a hero.
Wrongway Feldman returns to enjoy the island life he had before and the castaways try to come up with ways to get him to go back to civilization to help with their rescue.
Mrs. Howell gets bored because she is missing all her society activities and decides to get Gilligan and Mary Ann together as a couple.
Gilligan becomes infatuated with drumming and Mrs. Howell realizes that she misses music so she gets the castaways to form a island band. Gilligan's drumming is interpreted as war drums by natives on a nearby island.
The castaways become concerned when Gilligan hears gangsters talking on the island and the Skipper confirms it. Once they discover the gangsters, Mr. Howell's greed kicks in and he wants to find their loot.
After winning 39 turtle races, Mr. Howell wants to win the 40th. He talks the Skipper into betting Gilligan's services as a houseboy and soon starts to wish he had left well enough alone.
Gilligan finds the 'Eye of the Idol' which legend has it, can grant 3 wishes according to his best friend the Skipper. The professor objects and says there is no such thing as the wishes and that anything that might happen is pure coincidence.
When the castaways have a possible chance of rescue because of Navy activities in the area, the Skipper gets amnesia and thinks everyone is Japanese soldiers.
Gilligan is keeping a secret that is driving the rest of the castaways up a wall with curiosity to discover what it is.
The Skipper has to go on a crash diet when he realizes that he weighs too much to re-enlist in the Navy again. Meanwhile, the professor invents a phosphorescent dye that he hopes will work for signalling passing ships.
While fishing Gilligan finds a magicians trunk with all types of stage props in it. Later Gilligan feels useless when he overhears the other castaways talking about him and uses Ginger's trick to vanish.
An eccentric painter is discovered living on the island and the castaways attempt to get him to help them get rescued.
After Gilligan saves Mrs. Howel's life, he is adopted by the Howell's. He soon discovers that life among the rich and famous is not all it is cracked up to be, even on a deserted island.
Gilligan gets a injured nose when he falls out of a Palm Tree while collecting coconuts. His nose swells up causing him to have emotional issues with his looks. He then decides he wants the professor to give him a new nose.
