S3, E4: Sam and Dean investigate a rash of violent deaths in Elizabethville, Ohio, a once-sleepy town that has become a haven for gamblers and drinkers. Dean discovers that demons have infiltrated Elizabethville and are using powers of persuasion to make the townspeople succumb to their basest instincts. Meanwhile, Ruby (recurring guest star Katie Cassidy) helps Bobby (recurring guest star Jim Beaver) rebuild the Colt from scratch, and stuns him with some news.