Apache tracker Calian helps Bostonian Abby Walker find Independence, Texas, where she meets slippery Hoyt Rawlins and suspicious Sheriff Tom Davidson. Abby and Hoyt must align to uncover her husband's killer and save the frontier boomtown.

Hoyt, Calian and Abby try to uncover her husband's killer; the sheriff and loyal deputy Augustus hunt for the "mysterious" bank robber; Kate badgers Hagan into doing what's right; Lucia discovers a new friend and a startling talent in Kai.

Abby has a chance to undermine the Sheriff; Hoyt and Calian ally to defeat bandits, but Calian may risk his standing in his tribe; Kate chases information on Abby; Kai's again invaluable; Gus wrestles with trauma tied to wearing the badge.