As a young Knight of the Furnace, Blast Zone was part of the Skylands Bomb Squad, specializing in the disarmament and safe disposal of troll bombs.
But it wasn't long before the trolls grew tired of Blast Zone constantly thwarting their evil plans, so they decided to go after the Furnace Knight himself. Late one night, an army of trolls sneaked into Blast Zone Village and threw 100 bombs down its chimney.
Acting quickly, Blast Zone swallowed each bomb, then spat a stream of fire at the invaders, sending them fleeing with their boots on fire.
The story of the attack eventually reached the ear of Master Eon, who knew that the brave Knight of the Furnace possessed all the attributes of a Skylander.