From the Back Cover:

Nomads is a book that follows the life of Shirly and Sam Simmons a retired Snowbird couple that makes extra money buying items in Arizona and around the country to sell to people on homesteads in Idaho would want. They get embroiled in local issues in a small town in Idaho. They join with other retired couples and young working couples in Arizona as they struggle to escape the conflicts imposed on them by a fluid southern border to the small town in the state of Idaho only to be confronted by a much larger and more deadly international foe.