Air date: 9/25/85

A meteor of pure Thundrylium crashes into the remote Hook mountain. When Lion-O goes after it, he finds himself face to face with a man of the mountain whom he must fight.

The Spaceship Beneath the Sands

Air date: 9/26/85

After repeated defeats the mutants ask Mumm-Ra to return their ship which he buried in the desert around his pyramid. Once it is resurfaced, they have new weapons to use against the ThunderCats.

The Time Capsule

Air date: 9/27/85

The ThunderCats decide it is time to search for their time capsule from Thundera which has been missing since the crash.

The Fireballs of Plun-Darr

Air date: 9/30/85

The warrior women's village is attacked by Fireballs from a new weapon inside Castle Plun-Darr. When Tygra goes to investigate, he is captured and locked into a device which will rip him apart by pulling out his four limbs.

All That Glitters

Air date: 10/1/85

Mumm-Ra tricks Lion-O and Tygra into fighting each other which causes the Sword of Omens to break. In order to repair it the ThunderCats seek the help of a being whose powers are derived from bathing in liquid gold.

Spitting Image

Air date: 10/2/85

After the driller captures Panthro, Mumm-Ra creates an evil clone of him to turn the people of Third Earth against the ThunderCats.