r-o-o-k-i-e

A soldier is given a strange assignment to guard a train as it travels to its destination deep within the far northern portion of the Rocky Mountains. Specifically, he is told to guard a containment unit in the middle of the train with his life. It is a peculiar mission from the start, but when he begins to hear a voice coming from the containment unit, he comes to realize it is a mission unlike any other.