The Rookie 4x04 "Red Hot" Season 4 Episode 4 Promo Trailer HD - Officer Nolan and Officer Chen search for a missing person who may have international ties that puts everyone’s lives in danger. Meanwhile, Harper continues the search for a serial arsonist after responding to a report of an injured cyclist. Elsewhere, Wesley must overcome an impossible task on an all-new episode of “The Rookie,” Sunday, October 17th, on ABC. Watch episodes on demand and on Hulu the day following their premieres.