Episode 18

Matt Murdock finds himself on a collision course with Wilson Fisk when their past identities begin to emerge.

The most miserable person on Earth must save the world from happiness.

No job is more stressful, dangerous or exhilarating than those of the Firefighters, Rescue Squad and Paramedics of Chicago Firehouse 51. These are the courageous men and women who forge headfirst into danger when everyone else is running the other way and whose actions make the difference between life and death. These are their stories.

Tracker features lone-wolf survivalist Colter Shaw, who roams the country as a "reward seeker," using his expert tracking skills to help private citizens and law enforcement to solve all manner of mysteries while contending with his own fractured family.

Chef Gordon Ramsay of Hell's Kitchen fame is back, and this time he's hitting the road, exposing restaurants that are barely staying afloat.