A night of passion leads to love between con man Charlie and undercover CIA officer Emma, who are unknowingly on a collision course professionally. While Charlie ramps up the 'family business' so he can get out for good, Emma's closing in on the vengeful criminal who holds Charlie's family debts in-hand — forcing them to reckon with the lies they've told so they can save themselves and their families from disastrous consequences.
The Cannon family fights to establish a ranch in the Arizona Territory of the 1870s, amid conflicts with kin and the threat of hostile Indians. Forceful family head John is helped by his brother Buck and son Billy, whose mother is killed in the first episode. After her death, John unites the family with the wealthy Montoyas by marrying their daughter Victoria.