This time BoBoiBoy faces an ancient power called Retak'ka who wants to seize BoBoiBoy's elemental powers. He and his friends must stop their newest mysterious enemy from continuing with his evil plan. The story tells of BoBoiBoy and his friends being attacked by Retak'ka, the original user of Elemental Power. Retak'ka wants to reclaim the Elemental Power from BoBoiBoy and use it to dominate the galaxy. BoBoiBoy and his friends must find a way to stop Retak'ka and save the galaxy from his threat.