Heroes & Villains Castle : Season 4 Episode 2
TV-14 ABC 43m
Aired: September 26th, 2011 @ 9:00 PM EST on ABC
When an ex-con is mysteriously slain in an alley, Castle 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 – and may indeed be a Superhero. Can they capture and unmask the killer before he strikes again?
