In Tokyo, powerful Yakuza director Mitsua Usagi (Danny Kamekona) is murdered by Karl Jaeker (John S. Davies) - the personal assistant of Congressman Leo Cabe (Andrew Robinson). The Yakuza pursue Cabe, whom Walker and Trivette are sent to protect; the Rangers soon wonder, however, if there's something Cabe isn't telling them.
Meanwhile, Walker is reunited with his old friend Yoshihito "Yoshi" Sakai (Aki Aleong), whose father was a master of Sakai-Ryu karate; Walker was one of the elder Sakai's students. Walker discovers that Yoshi has joined the Yakuza...from whom Cabe and Karl have stolen some priceless Japanese artwork, in addition to slaying Usagi-san.
The confrontation between Walker and Yoshi is enough reason to watch this rather good episode- the fight is well-staged and has some good moves rather than just throwing punch and kicks. Nice judo throws and arm locks- good acting too by Aki and even Chuck, and of course, AndrewRobinson who made a career out of playing heels, though none of them are as disturbing as the one he played in Dirty Harry.