High-profile Chinese criminal Wujing (Chin Han) asks Red for help to decrypt a message from a CIA agent who was murdered in Shanghai. Red appoints Elizabeth to go undercover as a master decrypter, and they arrive at Wujing's underground base in the States. With help from a CIA-provided device, Elizabeth decrypts the message of Wujing's target, architect and CIA asset Henry Cho, who is currently located in Washington, D.C. As Red and Elizabeth accompany Wujing's gang in escaping from the FBI, Ressler and Malik race to save Cho and his son from Wujing's assassins. Elizabeth plants her tracker on Wujing's car, leading to his arrest. Red reveals that he chose Elizabeth to work with him because of her father, but he supplies no further details. Meanwhile, Elizabeth requests a ballistics report on the gun from Tom's box. The results are classified as it was involved with a high-profile homicide. An unknown party sets up surveillance in Elizabeth's house, characterized by their leader who eats an apple every time. Red opens the letter containing Wujing's payment - it's just a sheet of paper with the number 042983 on it.