When a powerful Japanese Yazuka is killed by Congressman Cabe's assistant, the Yazuka come to America, seeking revenge, and Walker and Trivette are assigned to protect the congressman.

When a hit-and-run accident pushes a vehicle to the edge of a bridge with an infant trapped inside, Walker will do whatever it takes to save the child - even if it means putting his own life in grave danger.

After killing a man involved in a carjacking, Walker becomes the target of several assassination attempts. These attempts begin to make sense when he learns that someone has put a $1 million bounty on his head.