April 19, 1995, begins like any other day in Oklahoma City until a bomb explodes outside a federal building. Oklahomans are plunged into chaos, and first responders race against the clock to save those trapped inside. Meanwhile, the media searches for answers, and the FBI begins what will become one of their biggest investigations.

President Clinton arrives in Oklahoma as grieving families come together to remember those they have lost.  The nation grapples with the reality that the bomber is an American veteran who shows no remorse. As the trial begins, the government seeks the death penalty for the worst domestic terrorist attack in US history.