SA: Chinks in the Armor of the Heart – Ag2O.Sensitive information has been stolen from a U.S. Naval base, and the primary suspect is a former Paralympic silver medalist boxer named Pavlo Zaitsev, who works on the base as a hand-to-hand combat instructor. The Public Security office has instructed Batou to go undercover to spy on Zaitsev, a man whom he admires, to see if Zaitsev is somehow related to the missing information. Batou wants his suspicions to be wrong and for Zaitsev to be innocent. The assignment calls into question Batou's attitude on his duty towards Section 9 and the decisions it forces him to make. However, Batou discovers that Zaitsev is indeed the spy and reluctantly turns him in.