Investigating the disappearance of an opera singer, Angela finds a link between the missing star and a married politician. Meanwhile, Dozer enlists her brother in preparing a surprise birthday party.

Angela arranges for her brother Jerry to meet her boyfriend Dylan, but things are interrupted by a shooting involving an unexpected visitor from her past. Leo and Dozer hunt for the gunman with their only clue being the code word "bluebird," a reference to her first case with the FBI. Meanwhile, flashbacks reveal how Angela was recruited to join the bureau.