What if,,,?

what if the biker b*t*hes,, killed your friend back in 98,, and for some reason you meet a few later on,, that were told you had something to do with why friend died,,, You tell them to go f**k themselves,, and they threaten your family,,, and you threaten their organization,,, and they threaten to kill everyone you know,, (cause their soildiers watch your every move and everywhere you go),,, so what do you do,,, when they say "walk dog" (the bounty hunter)?