 PLOT: Everyone agrees that if the train derails anywhere after  Jackson Summit this will most likely happen at Millers Bend. It  follows that a derailment at this point will be the most violent and  hence the most likely to trigger the bomb. Therefore if it gets that  far, the best thing would be for it to keep on going, if necessary  right through Denver and out the other side; and there is plenty of  time to think of this. Yet when the train approaches Millers Bend,  it is deliberately derailed there.