Plot

Gilligan and the Skipper construct a raft and set out to sea to find help. Back on the island, the remaining castaways are worried about possible headhunters.

The seven castaways awaken aboard the S.S. Minnow, which is beached and damaged on an uncharted tropical island. The Skipper and Gilligan set about making a raft to float them back to civilization, but encounter some unexpected difficulties in the process.—mikhail080

Following a violent storm, the crew and passengers of the S.S. Minnow wake up to find that they have washed ashore on an uncharted island. The captain, Jonas Grumby, more commonly known as the Skipper (Alan Hale Jr), and his first mate Gilligan (Bob Denver) decide to set sail on a raft to try and return to the mainland, even as the Professor (Russell Johnson) tells them it would be foolhardy, while the passengers stay on the island. Out at sea, the Skipper and Gilligan run aground of sharks, and a storm blows the crew back to the island, but Skipper and Gilligan do not know that this island is the same island with the castaways. Meanwhile, the other passengers (Jim Backus, Natalie Schafer, Tina Louise, and Dawn Wells) do not know that they have returned and believe they are actually returning Marubi warriors. The Professor tries to hide everyone in a cave to protect them, and it is this same cave that the Skipper and Gilligan try to hide in when they think the castaways are Marubi warriors. When both groups become aware in the cave that the other group is on the island, each group assume that the other are headhunters. It is only until Gilligan and the Professor get tossed out of the cave in the scuffle that they realize the truth, but Gilligan accidentally sets off a landslide and buries the cave. Everyone gets trapped in the cave, and the Skipper and Professor get everyone out of it. Gilligan hides in the back of the cave ashamed for the collapse for a minute with the Skipper calling him, but he eventually emerges dressed as a native scaring the passengers and the Skipper away from the cave.