On January 13, 2018 at 8:07 a.m., an emergency alert was issued in the state of Hawaii via television, radio, and mobile phone: "Ballistic missile threat inbound to Hawaii. Seek immediate shelter. THIS IS NOT A DRILL." For the next 38 minutes, until officials determined it was a false alarm, residents and visitors in the Hawaii islands had good reason to believe that the alert was legitimate. "This Is Not a Drill" takes viewers inside those terrifying 38 minutes through intimate interviews, surveillance footage and cell phone videos.