The train is the world, we the humanity.

Humanity.

The train.

You are the first human-being to have walked the total length of this train. Tail to Engine.

In the whole wide train?

In the whole wide train.

Seventeen. You're a train baby, then?

Train baby like you wouldn't know

Wilford's miracle train is self-sustaining

Of course, they failed to stop the train. Instead, they jumped out of the running train.

You're gonna have to run the train.

If we ever go outside the train?

Without you, Curtis, humanity will cease to exist.

And now, the perfectly correct number of human beings

You should run the train now, not Wilford!

to stop Wilford's Miracle Train and go outside!

She believed we could survive outside the train

Have you ever been alone on this train?

Every single day.

And I can take you. I know the train.