Gilligan believes he has become a vampire after receiving a bite from a bat and looking in a mirror without seeing his reflection (the mirrored area was missing). This is heightened during a nightmare in which he is a count and the rest of the castaways are his servants.
A foreign spy comes onto the island who is a lookalike of Gilligan, to find out what secret mission the castaways are on.
A plane crash leaves an eccentric Hollywood producer stuck on the island with the castaways. While awaiting a rescue plane, he helps the gang put on a musical version of "Hamlet."
A witch doctor has made his way to the island and after taking a few of the castaways possessions, has them under a voodoo spell.
Lord Beasley, a world famous butterfly buff has come to the island to catch an extremely rare butterfly and refuses to leave until he does so.
The mad Dr. Balinkoff has returned to the island with a ring in tow, which when worn will turn the wearer into a robot-like state. He plans on using these "robots" to rob Fort Knox back in the U.S.A.
The castaways put themselves in the danger of wandering around head hunter area to find a rare berry, needed to cure Gilligan's multiple vision after being struck on the head.
Gilligan and the Skipper discover a briefcase while fishing which is stamped as being "Property of the U.S. Government." Gilligan has a dream one night that he is a secret agent and must keep the briefcase away from the rest of the gang, who are all spies.
A "plain Jane" named Eva lands on the island after breaking up with her boyfriend. The girls give her a makeover into a beauty who resembles Ginger. Now she has a new shot of confidence and plans on using it...replacing Ginger Grant in Hollywood.
Gilligan is voted in as the deputy sheriff of the island as a means of forming some law and order while the castaways are stuck there. But the power goes to his head when he begins arresting everyone for the smallest of infractions.
A radio news flash has deemed the Skipper responsible for the missing S.S. Minnow. But Gilligan believes that he is to blame, and his thoughts are strengthened after dreaming he was an admiral who fleet was being attacked by a shipload of pirates.
Mrs. Howell begins receiving anonymous love letters, which leads to her dreaming that she is Cinderella, with Skipper as her step-mother, Ginger and Mary Ann as her step-sisters and Gilligan is her fairy godmother.
An unmanned space capsule lands in the lagoon, which may be their best chance at being rescued yet. The plan is for 2 of the castaways to climb aboard and float the waves out to sea. Unfortunately, the capsule only holds 2 people and everyone wants to be those 2.
A totem pole on the island bears a remarkable likeness of Gilligan,and he believes that he is a descendant of the island's headhunters. And the headhunters agree that Gilligan is the reincarnation of Watubi, their God.
A bump on her head has Mary Ann believing she is Ginger Grant, right down to her voice and mannerisms.
The Professor believes that they have found a hieroglyphic stone map which shows the way off the island. The problem is one major hunk is missing.
A jet pack is found on the island which is filled with fuel. Finally the castaways have found a break. Their plan is for Gilligan to strap the pack on when a jet flies nearby and fly up with an S.O.S. banner in tow.
A carrier pigeon lands on the island and the castaways decide to write a message asking for help. The bird flies back to it's owner, a man in prison who is about to be released. He receives the message and believes this is a joke. Will he still be in prison by the time the bird returns?
Gilligan finds what he believes is a box of clay. Instead it is discovered to be a container of plastic explosives. So far the substance has been used to make plates, nails golf balls and to fill some of Gilligan's teeth.