While taking care of a dangerous Suspension Capsule, dug up near Cats Lair, Lion-O is exposed to harmful gasses inside which cause him grow younger. If the Thundercats don't find a solution in time, he will rapidly become younger until non-existent.

The Sound Stones

Vultureman builds a sonic gun from a sound stone he stole in Dark Side as the Lunatacs join with him to attack the Tower of Omens.

Day of the Eclipse

The day of the centennial total eclipse has arrived and any spell Mumm-Ra casts will last until the next eclipse. He declares a "Day of Decay" on the Cats Lair causing it to fall apart.

Side Swipe

Chilla freezes Snarfer's spaceship as he heads back to the Tower of Omens with Berbil Mexican Takeout. When Mandora gets involved, Chilla freezes her and becomes a fugitive from the law as Mandora sets her sights on bringing her in.

Mumm-Rana’s Belt

Luna discovers that her grandmother's magic belt is now in the possession of Mumm-Rana who claimed it after battle. She heads straight for the white pyramid with Pumyra hot on her tail.

Hachiman’s Honor

While Hachiman is on his way to the Tower of Omens, Luna steals his sword the ThunderCutter and gives it to an automaton. Lion-O and the ThunderKittens head out to find their old friend.