 Jeff's background is revealed; after losing his mother as a teenager, he became an outcast and frequently lashed out at his family and society in an attempt to assuage his anger.His father, Captain Sanders (Beau Starr), gained the idea from a mutual friend, Kim (Mako), to enroll Jeff in a Kenpō school to better manage his rage and feelings.However, he lost his temper with a football player who punched his younger brother, and knocked him out with a powerful kick.