In Pretty Little Liars Season 3, Episode 20 ("Hot Water"), Detective Darren Wilden is exposed for his past involvement with Alison and Charlotte DiLaurentis in Cape May, culminating in Ashley Marin hitting him with her car. The episode advances the investigation into Wilden's role as the "Beach Hottie" and his antagonistic relationship with the main characters before his eventual death. For more detailed information, visit the Pretty Little Liars Wiki .