BoBoiBoy and Fang crash-land in a desert, far from their crew. Soon, they fall into a trap set by Windara's inhabitants. But are they friends or foes?

Determined to stop Reramos from controlling Windara, BoBoiBoy and the crew sneak into Kupuri Castle to free Princess Kuputeri.

With little hope, Maripos and BoBoiBoy face the mighty General Karumbang in battle — but the crew acquires powerful artifacts to even the odds.

As Reramos transforms into a gigantic monstrous creature, BoBoiBoy must find a way to unleash the Tempest Power to stand a chance against him.