ThunderCats
Season 3 Episode 11 - Key to Thundera
While trying to figure out a way to read the Book of Omens, Lion-O tries looking through the sword at the book. He is immediately drawn into the book, where a voice asks him if he has ""the key."" Lion-O says he doesn't, and four dragon heads appear and shoot fire at him. Snarf, who saw Lion-O get sucked into the book, tries to show Cheetara what happened, and he too gets sucked in. Mumm-Ra, who also watched Lion-O get sucked in, goes to cats lair and takes the book so he can destroy it with Lion-O inside. Meanwhile, just by coincidence, Panthro finds an odd looking key on Thundera. He and Tygra head back to Third Earth with the key, not knowing what it's for. Back on Third Earth, Mumm-Ra is just about to boil the book when Lion-O calls for the sword, and it brings him and Snarf back outside. Mumm-Ra takes the sword and looks through it at the book, and he gets sucked in! But Lion-O has to save him because of the code of Thundera, and Lion-O does save him. Panthro and Tygra arrive with t
Episodes in Season 3
ThunderCubs (1)
22 min
ThunderCubs (2)
22 min
ThunderCubs (3)
22 min
ThunderCubs (4)
22 min
ThunderCubs (5)
22 min
Totem of Dera
22 min
The Chain of Loyalty
22 min
Crystal Canyon
22 min
The Telepathy Beam
22 min
Exile Isle
22 min
Key to Thundera
22 min
Return of the ThunderCubs
22 min
The Formula
22 min
Locket of Lies
22 min
Bracelet of Power
22 min
The Wild Workout
22 min
The Thunderscope
22 min
The Jade Dragon
22 min
The Circus Train
22 min
The Last Day
22 min
