The woman US marshal Dawson O'Connor just bailed out of jail isn't his ex-wife. It's her identical twin, Summer Grayson--whose existence his enigmatic ex kept from him. Summer believes her sister is in peril...or worse. To draw out the perpetrator, she needs Dawson's help and protection. While Summer takes a dangerous risk by posing as her twin, Dawson will do whatever it takes to keep her safe.

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