Bullet Train Down starts when genius creator Jack (Xander Bailey) is seeing his first Bullet Train launched in America. As soon as the train sets off, Jack receives a call to demand money or the trigger-happy bomber will set off a bomb. The train can't drop below 200mph or it will trigger too. Former bomb disposal military man Kessler (Rashod Freelove) is on board and looks to work with Jack to solve the problem. FBI agent Scott Madison (Tom Sizemore) is running an operation from outside. With the train running out of track, the race to dispose of the bomb and escape the train is on.