Ghosts Season 4 Episode 20 I Know What You Did Thirty Seven Summers Ago

Hoping to expedite some permits, Sam and Jay host a fundraiser for the mayor of their small town. But when Stephanie, the teenage attic ghost, finds out who the mayor is, she wants to expose him for a past betrayal. Meanwhile, while following around Jay's pothead employee, Pete discovers ghosts are susceptible to the effects of secondhand smoke.