Three years after losing half a leg in an IED explosion while working as an MP in Afghanistan, Evin Walker is doing just fine, thank you very much. Aside from the alcohol-induced nightmares, she hardly ever thinks about her disability. She works out. She runs. She paints. She's even driving again, working part-time as a bus driver for the city of Cleveland. But when a thin man with a suspicious backpack pays his fare with a defaced US coin, leaving behind an incomplete application for a local chapter of a Militia Group on her bus, Evin's long dormant sixth sense goes into overdrive, sending her down a dangerous path that threatens her job, her relationship with her best friend, and in an explosive finale, the life she thought she was finally getting back to normal.