After following the demon Agramon through the temple portal Flash, Bones and Angel emerge into a strange and fiery realm populated with all kinds of terrible monsters.
They must split up in order to find the demon's lair and while searching, Flash unknowingly attacks a zombie pigman triggering a swarm of others that try and kill him. At the same time Bones and Angel are bombarded by Ghasts and other creatures of the Nether.
Can they find and destroy Agramon before being blown or chopped to pieces or falling into deadly lava?
Will the demon stronghold have the final ingredient they've been searching for?