Episode 70

9-1-1 is a fast-paced exploration into the lives and careers of first responders – cops, paramedics, firefighters – the people who put their lives on the line to save others.

Earth is visited by an alien species that threatens humanity's existence. Events unfold in real time through the eyes of five ordinary people across the globe as they struggle to make sense of the chaos unraveling around them.

NOVA brings you stories from the frontlines of science and engineering, answering the big questions of today and tomorrow, from how our ancestors lived, to whether parallel universes exist, to how technology will transform our lives.

FROM unravels the mystery of a nightmarish town that traps all those who enter. As the unwilling residents fight to keep a sense of normalcy and search for a way out, they must also survive the threats of the surrounding forest – including the terrifying creatures that come out when the sun goes down. In season two, hidden truths about the nature and terrifying origins of the town begin to emerge, even as life for its residents is plunged into chaos by the arrival of mysterious newcomers.

The Irrational follows world-renowned professor of behavioral science Alec Mercer as he lends his unique expertise on an array of high-stakes cases involving governments, law enforcement and corporations. His insight and unconventional approach to understanding human behavior lead him and the team on a series of intense, unexpected journeys to solve illogical puzzles and perplexing mysteries.