The story begins with a violent attack in a parking garage where gunmen stalk an unidentified woman. Hetty cryptically assigns the team to investigate the scene, where they find no identifying data about the victim. The case takes a personal turn when Hetty reveals the missing woman is (played by Andrea Roth), an undercover NCIS agent from Hetty's past who has been hiding in the team's boathouse. Key Plot Points
Summarize the that follows shortly after this episode. "NCIS: Los Angeles" Raven & the Swans (TV Episode 2013) [S4E22] Raven & The Swans
List other episodes where are revealed.
Provide more details on the relationship development in this episode. The story begins with a violent attack in