Sinopsis Serial Roll No. 21 Versi Terbaru (2012)

Kris is an intelligent and naughty kid who stays at an orphanage along with his friends, Pinky and Bablu. An Evil demon King, posing as principal Kanishk is out to create havoc in the school. He has an ulterior motive of taking over the world with his army of zombie demons. To save his friends and the school from annihilation, Kris prays to Lord Krishna and is blessed with super powers.