Sheriff Joe Flint wakes up to just another day in Greenville. But when you live in a border town in New Mexico, every day is different, and this is a bad one. Who is the dead man on the mysterious coach that rides into town, also carrying a badly injured woman and crying child? When Flint tries to investigate, the mystery deepens. He is soon dragged into a fight for his own life - but with the help of a stranger, Flint learns to fight for the answers...