In an attempt to distract Intelligence from the investigation into his son, Chief O'Neal forces Voight and the team to handle a "dead fish case." However, when that dead fish turns into a complicated heater case, Burgess is thrown back into difficult memories from her past.
Elenco: Jason Beghe , Jesse Lee Soffer , Marina Squerciati , Patrick John Flueger , Laroyce Hawkins , Amy Morton , Elias Koteas , Jon Seda , Sophia Bush , Tracy Spiridakos , Brian Geraghty , Lisseth Chavez , Archie Kao .