Based on a series of popular young-adult novels, "Samurai Girl" follows the journey of 19 year-old Heaven(Jamie Chung), the sheltered adopted daughter of one of Japan's wealthiest and most powerful families. Protected and watched over at all times by her loving but enigmatic father, Heaven is raised in opulent but confined surroundings, with every detail of her life tended to and extravagantly provided for in the tradition of Japan's hierarchal society.

But when Heaven finds herself in San Francisco for her arranged wedding to the son of one of her father's business associates, she has no idea that her protected life is about to be shattered and that her past is linked to an ancient secret prophecy which both good and evil forces will fight to the death to control.