Charley explains that one night while hurrying home, he decided to take the subway from the Grand Central Station. He eventually found himself on a strange third level with spittoons on the floor, oddly dressed people and locomotives from the 1890's.
Understanding he'd somehow gone back in time, Charlie tries to buy tickets to Galesburg. During his lunch break the next afternoon, Charlie withdraws all their savings and buy old style currency. But, he can never find the entrance to the third level at the Grand Central.