Abductee

Mister Chiba awakens in a container tied up with a plastic bag over his head When he manages to free himself he finds a mobile phone a light stick and a strange black stone A number is tattooed on the inside of his wrist From the way the container shakes can be deduced that Chiba is transported first in a truck and then on a ship And hes not the only one People are trapped in the containers next to him as well about a hundred in total What is the purpose of this forced journey