Second of two parts

At 4 a.m., southern Minato Ward's Shibaura Pier is an indigo city of shipping containers, wind-borne detritus and flatbed cargo trucks. It is spooky and unlit but for Rainbow Bridge and its sparse predawn traffic.

By 5 a.m., fishing boats and tugs head out into Tokyo Bay toward sea, and truck drivers turn over their engines, warm their cabs, light cigarettes.