When two transient bikies are brought into the station on a report of shoplifting, Tom discovers one of the to be Bull, an old mate from Vietnam. Bull's taken the other route after Vietnam, he chose the open road and a different sort of uniform and code. The lifestyle certainly looks seductive for Tom as he takes a spin on the back of Bull's bike. But Bull's not the carefree easyrider he seems. He is in town for a reason, he's been on a man hunt for seven years. He's looking for the man who killed his daughter. It seems the local video repair man, Peter Ross, is particularly twitchy since the gang came to town. In fact he's assaulted Jack, seemingly to get into jail and off the street. What is he afraid off? It becomes clear he is the source of Bull's vendetta—Ross, his daughter's bitter ex, is the ""one that caved her head in that night."" Tom and Bull test each other's mettle in a 'custody battle' over the desperate Ross. It's a stand-off—the gang aren't leaving till they get Ros