Air date: 10/31/85

Vultureman summons Rataro and his Ratstar battleship who kidnaps Snarf's nephew Snarfer on the planet of Snarfs. They then bring Snarfer back to Third Earth and use him as bait to trap the ThunderCats.

Feliner – Pt. 2

Air date: 11/1/85

The ThunderCats race to try to salvage the part they need for the Feliner from the wreck of the Ratstar before the mutants can complete repairs. Snarf contemplates leaving the Thundercats forever.

Mandora and the Pirates

Air date: 11/4/85

Mandora boards a space freighter for inspection, it turns out to be the ancient space pirate ship the Jolly Rogers and she needs Lion-O's help.

Return of the Driller

Air date: 11/5/85

Mumm-Ra instructs the Driller to bore a tunnel from an acid lake to the Cats Lair. It's a race to save the Lair as they face obstacle after obstacle while trying to obtain and bring back a sponge cloud to fill the hole.

Dimension Doom

Air date: 11/6/85

Wizz-Ra returns from the 7th dimension once every 7000 years, this time he enters Cat's Lair through a mirror in Cheetara's room. Mumm-Ra, his ancient enemy, is able to steal his magic helmet. He then enslaves the Thundercats and only Cheetarah and Snarf are left to help their new friend before his time runs out.