Tinkering with Radio Hope's blurb (version 3.0)

I realized that the blurb for my upcoming novel Radio Hope doesn't actually mention the radio station! So I've added a line. Tell me if you think this flows. One of the things I love about indie publishing is just a week before a book is published, you can fiddle with it.

In a world shattered by war, pollution and disease. . .

A gunslinging mother longs to find a safe refuge for her son.

A frustrated revolutionary delivers water to villagers living on a toxic waste dump.

In humanity’s last city, the assistant mayor hopes he will never have to take command.

Their only thing in common is they all listen to Radio Hope, a mysterious station that broadcasts vital information on surviving in a blighted world. But when a mad prophet and his army of fanatics march out of the wildlands on a crusade to purify the world through blood and fire, all three will find their lives intertwining, and changing forever.