Season 1: Terrorism Close Calls - Where to watch

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A horrific terrorist plot -- suicide bombers and shooters working in tandem -- is foiled when a suspect makes an unexpected move.

The arrest of a 14-year-old boy in England sparks a frantic investigation into a terror plot halfway around the world in Australia.

A young mother's suicide attack at an Israeli checkpoint ignites interest in her motivations as well as her baffling backstory.

Four terrorists plan a two-pronged attack in Germany: detonate bombs in popular nightclubs, followed by larger bombs in the streets once people flee.

A man with ties to white supremacists goes on the run after his plan to bomb a Martin Luther King Day march is foiled by the FBI.

Suicide bombers plan to use explosive liquids disguised in sports drinks to blow up at least seven separate planes bound for North America.

A car salesman plans to assassinate the Saudi Ambassador to the U.S. with some help from a Mexican cartel member -- who happens to be a DEA source.

A number of international intelligence agencies work together to thwart a terrorist scheme to blow up American cargo planes in flight.

A suspicious online purchase helps start the FBI's investigation into a chemical engineering student's quest to inflict horrendous damage on America.

As three young terrorists finalize plans to detonate bombs on New York City's subway, law enforcement agencies work tirelessly to halt the attacks.