This documentary explores Canada's forgotten comic book superheroes and their legendary creators, from the golden age when millions of children read the tales of Inuit goddess Nelvana of the Northern Lights, to the thrilling days when Canadian superheroes returned to the news stands with Captain Canuck and Cerebus. Lost Heroes celebrates the unique Canadian talent behind these characters. This is a journey to recover a forgotten part of Canada's pop culture and a national treasure few have heard about. It’s the tale of a small country striving to create its own heroes but finding itself constantly out muscled by better-funded and better-marketed superheroes from the media empire next door.