when do they find out who red coat is
Red Coat (Pretty Little Liars) In the fourth season's mid-season finale "Now You See Me, Now You Don't", the Liars head to Ravenswood to look for Red Coat. While there, Red Coat kidnaps Emily and locks her in a coffin on a Sawmill. The Liars witness Red Coat heading to that Sawmill and chase her inside, where she actually stops the saw and another Red Coat, donning a mask of Alison's face, appears on the stairwell, revealing that two people have been sporting the disguise all along. Spencer follows the "good" one, while Aria fights and unmasks the other figure as CeCe Drake. The Liars manage to catch the "good" Red Coat near the ending of "Grave New World", who reveals herself as an alive Alison. During "EscApe from New York", Ali claims that she asked CeCe to wear the disguise to distract "Big A". It is later revealed this was all a ruse, given that CeCe actually was the Red Coat who stole the game from Mona and wore the disguise during her schemes until she was caught in it. In "Game Over, Charles", the Liars learn there was a third Red Coat who posed as a decoy to CeCe and used the infamous disguise to distract the Liars whenever she couldn't. The third Red Coat is revealed to be Sara Harvey.
The Hunt for Red October (film) Red October is suddenly attacked by V. K. Konovalov, which has tracked them across the Atlantic. As the two Soviet subs maneuver, one of Red October's cooks, Loginov (Tomas Arana), an undercover GRU agent and the secret saboteur, opens fire. He fatally wounds first officer Vasily Borodin (Sam Neill) before retreating to the nuclear missiles bay, pursued by Ryan and Ramius. Loginov shoots Ramius, wounding him, but Ryan kills Loginov before he can detonate a missile. Meanwhile, Red October makes evasive maneuvers with a diversion provided by Dallas, causing V. K. Konovalov to be destroyed by its own fired torpedo. The crew of Red October, now rescued, watch the explosion from the deck of the U.S. frigate; unaware of the second Soviet submarine, they believe that Ramius has sacrificed himself and scuttled Red October to avoid being boarded.