An edge-of-your-seat view into the lives of everyday heroes committed to one of America's noblest professions. For the firefighters, rescue squad and paramedics of Chicago Firehouse 51, no occupation is more stressful or dangerous, yet so rewarding and exhilarating. These courageous men and women are among the elite who forge headfirst into danger when everyone else is running the other way and whose actions make the difference between life and death.

Nadia keeps dying and reliving her 36th birthday party. She's trapped in a surreal time loop -- and staring down the barrel of her own mortality.

Her career in shambles, a reclusive movie star hires her stand-in to go to rehab for her, not expecting how much the look-alike will relish the role.

Returning to San Francisco after a long absence, Mary Ann Singleton reunites with the community of characters at 28 Barbary Lane.

The boundaries between military discipline and human desire are tested on a U.S. Army base that houses an elite unit of helicopter pilots trained to perform clandestine international and domestic missions. The drama unfolds in the present as well as in flashbacks to a failed mission involving one of the first female pilots in the unit, ultimately uncovering layers of personal and government/military secrets and leading to a season-long plan to rescue a group of MIA soldiers.