Why was the man shooting at that girl? Where did the polar bear come from if everything was dead on earth? Why did the guy who got shot come back to life? Why did they blow up the train? Why did they think a train was the best way to survive global freezing? Who built the track over the sea? How did they build the track around the world? How did they pick the people? Why is there a fish tank in the train? Why are they on drugs all the time? How did the train not fall off the track with all the fighting going on? Who the hell is that girl?
These are all questions I asked when watching this.... It's rubbish.