The Walking Doctor

Platt's Gulch, 1902, The Southwest Territory: The Judge arrives into town to find the people suffering from an illness that's more virulent than Ebola and yet not contagious. Some of the survivors seem to be changing--they aren't quite themselves anymore.
The Judge must find the source to find a cure before the whole town is wiped out. Does the strange glow in the sky have anything to do with it? Will she come to terms with her dark past as she fights to save the small town?