The Mutants arrive and Mumm-Ra has them hide a decoy Book of Omens leading the ThunderCats in the wrong direction.

ThunderCubs – Pt. 5

The ThunderCubs return to Third Earth and join with the ThunderKittens to mount a rescue mission which will infiltrate Sky Tomb whilst Lion-O continues to battle Mumm-Ra.

The Totem of Dera

Mumm-Ra recovers the Totem of Dera and learns of its healing powers which can be used to bring inanimate objects to life. He sends the Mutants out to use it against the ThunderCats.

The Chain of Loyalty

Whilst studying the Book of Omens Lion-O learns of the Chain of Loyalty and Jaga instructs him to recover it from New Thundera. But when Mumm-Ra breaks the chain, the Thundercats turn against each other and Lion-O must find a way to stop them from destroying each other.

Crystal Canyon

Tygra finds a powerful stone which slowly takes control of his mind. He refuses to listen as Lion-O tries to warn him that the stone is dangerous.

The Telepathy Beam

Vultureman uses a new weapon on Cheetara to overwhelm her sixth sense in an attempt to destroy her confidence and distract her from sensing the truth that Panthro has become a prisoner and turned slave to upgrade Sky Tomb to be able to make a trip to New Thundera.