The Rookie, Season 5, Episode 4 (“The Choice”). In this gripping episode, serial killer Rosalind Dyer makes her most twisted move yet. When Firefighter Bailey Nune responds to what seems like a routine emergency, she unknowingly walks into one of Rosalind’s booby-trapped houses. The floor collapses beneath her, dropping her into a terrifying underground chamber rigged with lethal devices — electrified grates, fire hazards, and rising water designed to kill. As time runs out, Officer John Nolan r