Dr. Shinker sends a monkey out to capture the Shrinkies and soon discovers the beast has no loyalty when the monkey helps the shrinkies escape.
Dr. Shrinker captures Brad then replaces him with a robot duplicate programmed to lead B.J. and Gordie into a trap.
The Shrinkies are captured after Dr. Shrinker's electro sismopilizer makes it impossible for them to hide underground. It also activates a volcano which Dr. Shrinker needs calming down.
Gordie is captured by a bird who thinks he is her hatchling.
After Hugo deduces the reason the Dr. Shrinker has been unable to capture the Shrinkies is that he is too big, Dr. Shrinker uses the shrink ray on himself to deal with the Shrinkies at their own size.
Brad, B.J. and Gordie have hopes of being rescued when a government agent washes up on shore; however, Dr. Shrinker captures the man and learns he was in possession an important nuclear defense system document.
Dr. Shrinker gets more than he bargained for when he invents berries that give the Shrinkies the power of invisibility.
Gordie is returned to normal size with no memory of who he is, so Dr. Shinker and Hugo convince him that he is Dr. Shinker and that he must come up with a plan to capture Brad and B.J.
Dr. Shrinker's latest invention gives Hugo superpowers.
The Shrinkies meet a native island boy.
A pair of divers arrive on the island with a treasure chest, and they soon stumble upon the Shrinkies.
When Hugo breaks out with splotchalaria, the Shrinkies scour the island for wonga berries to cure him.
A young Chinese prince finds a traitor in his entourage soon after arriving on the island.