- Season 5 Episode 10
HALSTEAD PUTS HIS CREDIBILITY AND CAREER ON THE LINE TO HELP SOLVE A CASE WITH TIES TO HIS NEW GIRLFRIEND
Halstead's (Jesse Lee Soffer) partying with Camila (guest star Anabelle Acosta) unintentionally puts him in the middle of a drug-related homicide. He's forced to choose between loyalty to his unit and his girl. Meanwhile, Voight (Jason Beghe) finally discovers the mole in his unit.