This movie covers the final hour leading up to the Columbine High Massacre. On April 20, 1999, two boys from Columbine High School in Colorado embarked on a massacre and killed 12 students, one teacher, and injured 21 other students, before turning the guns on themselves.
| Actor | Role |
|---|---|
 David MorrisseyNarrator | Narrator |
| BBen JohnsonEric Harris | Eric Harris |
| JJosh YoungDylan Klebold | Dylan Klebold |
| AAlex MacdonaldJohn Savage | John Savage |
| GGabriel AntonacciAaron Hancey | Aaron Hancey |
| AAlan K. SappDave Sanders | Dave Sanders |
 James GilbertBrooks Brown | Brooks Brown |
| AAlison AnthonyPatti Nielson | Patti Nielson |
| SShane HarbinsonDeputy Neil Gardner | Deputy Neil Gardner |