Chaotic - Season 2 Episode 4 Colosseum Showdown
Overview: During a scan quest, Peyton and Sarah encounter the biggest fighter they've ever seen. Kaz, Tom, Sarah and Peyton decide to track down the giant. But trouble comes for Kaz he bumps into a little creature called Hammerdoom Chantcaller who challenges Kaz to the coliseum and he has to battle or be banished from the Underworld.