On her first day back, Andy is forced to work a bank robbery case with newly promoted Swarek; a distraught woman gives Nick perspective on his life with Gail; a bombshell is dropped on Noelle.
On her first day back at 15 Division, Andy must work with Swarek to track down an ex-convict determined to get his old life back at any cost. In the process, Andy realizes just how much has changed since she walked away from her old life six months ago.
Andy and Nick return to 15 Division to find things very different than how they left them six months ago. But Andy's first day back on regular duty is anything but 'regular'. She comes upon an armed robbery-in-progress which forces her to work with newly promoted Detective Sam Swarek. Meanwhile, Nick and Gail help a distraught woman, who offers a bit of perspective for Nick.
Mary, a teenage immigrant from Ireland, finds that working in a mill in Lowell, Massachusetts is not what she'd envisioned as new life in America.
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