TV See the return of serial killer Rosalind Dyer in The Rookie season finale sneak peek By Maureen Lee Lenker Maureen Lee Lenker Maureen Lee Lenker is a senior writer at Entertainment Weekly with over seven years of experience in the entertainment industry. An award-winning journalist, she's written for Turner Classic Movies, Ms. Magazine, The Hollywood Reporter, and more. She's worked at EW for six years covering film, TV, theater, music, and books. The author of EW's quarterly romance review column, "Hot Stuff," Maureen holds Master's degrees from both the University of Southern California and the University of Oxford. Her debut novel, It Happened One Fight, is now available. Follow her for all things related to classic Hollywood, musicals, the romance genre, and Bruce Springsteen. EW's editorial guidelines Published on May 7, 2020 10:00AM EDT Cops and serial killers make strange bedfellows, but John Nolan might not have a choice on The Rookie season finale. In this exclusive sneak peek at the second part of the ABC series' season 2 finale, Officer Nolan (Nathan Fillion) turns to the extremely dangerous resource of convicted serial killer Rosalind Dyer (Annie Wersching) for help with one of his most painful investigations yet. Nolan faces the prospect that his trusted friend and mentor, Detective Nick Armstrong (Harold Perrineau), might be a dirty cop. Armstrong arrested Dyer, and she promised Nolan she still knew a few of Armstrong's secrets. The clip shows a tense moment between Nolan, his training officer Nyla Harper (Mekia Cox), and Armstrong when a plot to ferret out information about the detective doesn't go as planned. Fearing they are at a dead end, Nolan decides to turn to Dyer as a last resort. While discussing the finale with EW, creator Alexi Hawley reflected on the Silence of the Lamb-esque bond between Nolan and Dyer and shared his wish for a potential season 3. "It is an interesting relationship and Annie is so good," he said. "I always err on the side of putting great actors in scenes together. If there's a way to get Annie back that feels real and not cheap, then we can't go wrong with writing good scenes for good actors. But it would have to be organic." Watch the clip above to see their great finale scene together. The Rookie season finale airs Sunday at 10 p.m. ET/PT on ABC. Related content: Nathan Fillion loses a smoking gun in The Rookie season finale sneak peek Mekia Cox talks joining The Rookie, why her new character is a 'wild card' Watch Pete Davidson punch Nathan Fillion in the face on The Rookie