Tummi has to clean up a big mess in Gummi Glen. After tricking a tired Zummi into casting a spell on him, but the spell proves unpredictable. Then, Igthorn hires bounty hunter Flint Shrubwood to catch a Gummi Bear.
Trolls try to hijack a shipment of gold protected by Cavin's grandfather Sir Gawain. Then, Igthorn puts Dunwyn to sleep, leaving only Calla, Cavin, and the Gummi Bears to protect the castle.
Duke Igthorn sneaks into Dunwyn Castle and hands King Gregor a magical egg that turns the king into a crystal statue. Then, Sunni creates a growing potion while Toadie is cast out by Duke Igthorn again. The two meet to unexpected results.
There is a thief in Gummi Glen, so Zummi and Grammi team up to find the rat. Then, after an autumn of hard work, the Gummies are looking forward to the holiday of Fall's Farewell. However, Sunni goes far overboard with the celebration.