Born and raised in the City of Brotherly Love, Lt. Chris McMullin (Bucks County Sheriff's Office) hosts "." McMullin spent several years as a Philadelphia P.D. patrol officer before working his way up to become a detective with Bensalem P.D., where he investigated everything from robberies to assaults, sex crimes and homicides.  In each hourlong episode of "," McMullin gives unique insights on crimes that took place in a region steeped in rich history, vibrant culture, and known for tenacity and grit. Archival footage, exclusive first-person interviews with former and current Philly area detectives and cinematic recreations provide an insider's view into the heartrending cases Philly's finest diligently worked to solve in the city known as America's birthplace.