Season 4 Episode 2 - ヒーローズ and Villains 

When an ex-con is mysteriously slain in an alley, 城 and Beckett believe a vigilante is behind the murder. But efforts to identify their suspect are thwarted when they discover that he roams the city in a Superhero costume
キーワード: 城, season 4, episode 2, ヒーローズ and villains, full episode, abc