Trevor Luce

Four years ago, a young woman, Jessica Raab (Amanda Fuller), went missing. Vivian's weekly fingerprint search on the unidentified print found on Jessica's door finally results in a match. The print belongs to a male fugitive who recently attacked a woman in a motel room. After Vivian uses this new lead to convince Jack to get the team involved in Jessica's case, the agents discover new information about the missing woman, including her desperate struggle to overcome her sex addiction prior to her disappearance. Kirstie Alley (Veronica's Closet, Cheers) guest stars as Noreen Raab, the missing woman's mother, and James Eckhouse (Beverly Hills 90210) guest stars as Noreen's former neighbor and short-term boyfriend, Charles Rudman.

The record-breaking summer heat and the likelihood of blackouts send the Chicago Police Department into the streets in full force to temper the city’s escalating violence. Alongside her new driver, Superintendent Teresa Colvin finds herself back in the field while Detectives Wysocki and Evers take over an emotional case in which a son witnessed his father’s fatal shooting. Meanwhile, Alderman Gibbons enlists Liam to help keep his constituents cool.