Eva Winters is young, beautiful and the heiress to the prized Starling Vineyards in Napa. She's also in love with the perfect guy, or so she thought until he helped take everything she had from her. Having lost her home, she ends up on Rebun Island in Japan, at the Takeda School of Revenge, where she trains to be mentally and physically strong enough to take revenge. On the island, Eva meets Emily Thorne, who has recently returned to training with Takeda. Emily shares her wisdom with Ava about revenge and the importance of seeking justice in a world where enemies thrive. Four others on the island prepare for their own personal revenge - a handsome but wary man, a determined young woman with a boyfriend who will do anything to to protect her, and a girl who has lost her memory and has no idea who she is and why she is on Rebun. Conflicts arise, bonds are formed, and even a romance is in full swing. Trainees learn that their missions are intertwined. All roads lead back to Ava's home in Napa for the annual Starling Vineyard celebration, and if the group gets there, they will each get their chance for revenge. But to get there on time, they must leave Japan and Takeda before their training is complete. Are they ready? Will they succeed? Will they survive at all?