When the owner of the Dojo Gibbs works out is found dead, he tries to find out what happened. And the trail leads him to a man who made his friend fight in a to the death match because he made a bet with a Japanese Yakuza member. So Gibbs offers to fight not knowing what it is, so Nick and Kelly have to save him.
Horton is being pursued by two sadistic killers he convicted years ago. Nick tries to help him by having Kelly keep an eye on him. And Moon and Gibbs pretend to be a couple of hit men who claim that they are getting in their way to get Horton.