All of Chicago is on edge as a new school year begins. Mayor Rahm Emanuel hits the streets as his controversial 'Safe Passage' program is put to the test. Police Superintendent Garry McCarthy patrols the city with help from Chicago Fire Department Captain Joel Burns, hoping that the first day of school will come off without a hitch. Fenger High Principal Liz Dozier welcomes her students back, but is confronted by an unexpected crisis. Simultaneously, downtown, venture capitalists at the technology entrepreneur incubator named '1871,' including 1871 founder J.B. Pritzker, host Chicago's "Demo Day" where young tech stars compete for venture capital.
—CNN