In 19th century Japan, Nathan Algren, a US army captain, is hired by the Japanese emperor to train his army in the modern warfare techniques. Captain Algren finds himself trapped in a struggle between two eras and two worlds.

The secret U.S. abduction of a suspected terrorist leads to a wave of terrorist attacks in New York City, which leads to the declaration of martial-law.

A fisherman, a smuggler, and a syndicate of businessmen match wits over the possession of a priceless diamond.