There is so much potential in the story line but it just seems like the direction of the characters - expressionless Joe, confused and indecisive Abbie - is weak and poorly arranged. Everyone on the train wandering up to look at the controlling device, inept Goverment Minister being allowed to take over the only phone, no one taking any controlling responibility on the train, Joe running up and down the carriages with little idea for what reason, train hitting the last fuel tanker on the crossing and staying on the rails ..... nah, not likely.
It's interesting, it could have been really good, but it's like all the characters and situations have been deliberately restrained.