Guurahk was one of the six Rahkshi released by the Makuta in order to stop the Matorans Takua and Jala from finding the seventh Toa.

BIONICLE Mask of Light: The Movie

Guurahk was released by the Makuta along with Panrahk and Lerahk to stop the approach of the seventh Toa. He and his fellow Rahkshi attacked Ta-Koro in search of the Kanohi Avohkii (the Mask of Light). He was scene ready to attack to Matoran until the were rescued by Toa Gali. Guurahk then escapes from Ta-Koro by using his staff to fly.

Guurahk later returns with Panrahk and Lerahk at Ko-Koro and is then frozen in a lake shortly after by Toa Kopaka.

However, the ice did not hold him and the other Rahkshi for long and he returns to fight the Toa. However, he, Panrahk, and Lerahk end up being frozen in a mix of elements created by the Toa.