Gilligan's Personal Magnetism

Gilligan's Personal Magnetism is the 89th episode of Gilligan's Island and the 21th episode of the Third Season. It aired on February 6, 1967.

Synopsis
While Gilligan and the Skipper are bowling, a storm comes up and Gilligan is struck by lightning. His bowling ball becomes mysteriously and magnetically attached to his hand; the Professor rationalizes the lightning has become attracted to the iron in Gilligan's blood. The odd predicament makes Gilligan electrically-charged. The Skipper gets shocked lifting Gilligan into his hammock that night plus the weight of the ball his hitting and smacking everything in sight. The next day, the Professor believes he can use the generator from the S.S. Minnow to create a counter-charge and disintegrate the ball. With Mary Ann helping him, Gilligan watches as the ball resists the charge, but during another storm advance, Gilligan is struck by lightning again. The ball is knocked free of his hand, but the energy causes a cloaking effect around Gilligan that renders him invisible. His strange state makes it difficult for Ginger to examine for the Professor who thinks strips of cloth dipped in lead ore will absorb the charge off him. However, when Gilligan is left alone in his mummy status, he ends up terrifying the girls and Mrs. Howell. Ginger running from Gilligan snags his wrappings on her comb and pulls it off as she flees. As the castaways sit around at dinner and realize what had happened, the find a note from Gilligan reporting he has left for the other side of the island to be left alone. When Mary Ann tries processing this news, Gilligan sneaks back still invisible to get some food and is noticed by his plate sliding around. Realizing Gilligan has been eavesdropping, the Skipper moves to swat him with his cap, but Gilligan eludes him and taunts him just as the invisibility wears off. Realizing he's back to normal, Gilligan tries to apologize to the skipper, who chases him into the jungle. The following morning, Gilligan is happy to be visible once more, and the Skipper is in a good mood too, throwing his voice into the hut to trick Gilligan into thinking he's now invisible but then good-naturedly teasing him the next.

Credits
Main Cast
 * Bob Denver as Gilligan
 * Alan Hale Jr. as The Skipper
 * Jim Backus as Mr. Howell
 * Natalie Schafer as Mrs. Howell
 * Tina Louise as Ginger
 * Dawn Wells as Mary Ann
 * Russell Johnson as The Professor

Guest Cast
 * None

Trivia

 * The syndicated version of the episode omits that last scene where the Skipper pretends to be invisible to prank Gilligan.
 * If one looks closely in the hut scene with Mary Ann, you can see a small tube going up her sleeve pumping the drink out of Gilligan's glass. In the scene with Ginger, the wire holding up the peach is also visible.
 * This is the second time Gilligan has been struck by lightening; he was also struck by lightning in Meet the Meteor.
 * One of the most far-fetched episodes of the series since getting struck by lightening would not make a person magnetized or invisible, and if it did, it probably would not have affected Gilligan's clothes.
 * Since the castaways already had a bowling alley in Plant You Now, Dig You Later, creating another one seems like a waste of their time.

Quotes
Skipper -  You got hit by lightning while trying to knock the pins down. Gilligan -  Did I knock them down? Professor -  He sounds normal.
 * Gilligan -  What happened?