Hot Zone: Anthrax

After an anthrax attack on US soil, Special Agent Matthew Ryker begins his investigation.[National Geographic]

The investigation moves to New York as a new case of anthrax appears at 30 Rock.[National Geographic]

An attack on Capitol Hill sends panic through DC; officials struggle to properly respond.[National Geographic]

Ryker and team trace how the letter was sent, as another side of Bruce comes to light.[National Geographic]

Dani's lone wolf theory gains traction, and the FBI surprises Ryker with an announcement.[National Geographic]

Bruce becomes increasingly unhinged as the FBI circles him as a suspect.[National Geographic]