
- 1
Part 1
A waste disposal worker hides a dismantled Russian nuclear bomb on a freight train to cut costs. The freight train also carries volatile, flammable chemicals. The train loses its brakes and becomes a runaway hurtling toward Denver, Colorado.
- 2
Part 2
An NTSB (National Transportation Safety Board) investigator named John Seger boards the runaway train to try to stop it before catastrophe strikes.