Du har rätt om sitt namn.
från Wikipedia :
Monster Warriors is an original Canadian television series which aired on YTV in Canada and also on Jetix since April 2006 in the United Kingdom. It was created by Wilson Coneybeare and produced by Coneybeare Stories Inc. The series concluded its run on July 26, 2008, with a TV movie titled Monster Warriors Finale on YTV.
Wikien nämner också det monster som beskrivs:
Worm – An earthworm that eats subway trains.
Den här episoden heter Terror Underground .