T. J. Hooker - Season 2 Episode 10
Thieves' Highway

Hooker and Romano get caught up in the dispute between an independent trucker and the ruthless wholesaler who is sabotaging the truckers operations. Against the wishes of his superiors, Hooker insists that he intervene in the situation before the truckers tire against the lack of action taken against the saboteurs, and become vigilantes to deal with things themselves. A new female Police commissioner who doesnt agree with Hookers methods does not exactly help matters...