Reed returns from the flu and half the other officers have caught his bug. He and Malloy get drafted to double shift to night watch. Finally, Mac asks them to host a civilian police commissioner, and they get a surprise.

The officers respond to a call at a market where a woman is held for shoplifting. She claims it is her first attempt and she has no money. When they leave the store she runs to a car claiming the baby inside is hers. At the station she escapes when a disruption in the hall distracts the officer with her. Back on patrol the officers take a call about a break-in at a warehouse. Reed is taken hostage but tricks the man holding him. The police receive a report of a baby stolen by a couple including the shoplifting suspect. A call about a disturbance at an apartment results in the capture of the girl and the manager saying her husband stole his car and has the baby. The girl accuses the manager of making the extortion call for $2,000 for the baby. While on patrol another squad car spots the stolen car. Malloy and Reed intercept the car leading to a foot chase by Reed through a rail yard to capture the man.