S3, E8: When Intelligence follows up on a tip Antonio (Jon Seda) and Halstead (Jesse Lee Soffer) received from a reliable informant about an upcoming drug trade, the team is shocked to discover the mutilated body of a man. Upon further investigation, the body is identified as a government official and when Olinksy (Elias Koteas), Ruzek (Patrick Flueger), Lindsay (Sophia Bush) and Halstead question the man's acquaintances they discover he had access to very important devices. Meanwhile, Burgess (Marina Squerciati) helps plan a surprise for Platt (Amy Morton).