I have a novel planned about this. Basically, zombie apocalypse starts. People get infected, the lights go out in major cities and they lose radio contact, and the troupe of heroes, lead by a gritty survivalist, set down harsh rules for their camp to survive as long as they can.

Several months later after some harsh decisions and a few deaths, the radio hums to life again. Turns out, the city’s main antenna was damaged, and there was risk in fixing it. But, with some danger, life has proceeded as normal there; and they’re making steady breakthroughs on a cure for the infection. The government is active, finding who to help, and little of the “Brutal, tough decisions” of the survivor crowd were necessary.