Unstrung is set on the pro tennis tour where brother and sister Luke and Ellie Holt compete to move up the ranks.

Unstrung explores the sexy, cutthroat and emotional stakes of the professional world tour of tennis as brother and sister Luke and Ellie Holt compete to move up the ranks. The Holts may seem to have it all in a world where success is not only determined by prowess on the court, but by looks, charm and the ability to hide your faults under pressure from fans, critics, opponents and even your closest allies. But a major family secret threatens to turn their lives, and their hard-earned family "brand," upside down.—Philiana Ng