premise: Luke Cage is a superhero.
hypothesis: Luke Cage , also known as Power Man ( real name Carl Lucas ) , is a fictional superhero appearing in American comic books published by Marvel Comics . He was the first black superhero to be featured as the protagonist and title character of a comic book . Once freed , Cage becomes a `` hero for hire '' and teams up with fellow superhero Iron Fist as part of the duo , Power Man and Iron Fist .