In Los Angeles, Riley North and her husband Chris North go to a carnival to celebrate the birthday of their ten years old daughter Carly North. However, a friend of Chris had invited him to rob the powerful drug lord Diego Garcia and although Chris did not accept the offer, Diego discovers his involvement and orders his men to kill the North family. Chris and Carly are murdered and Riley survives, and Detective Stan Carmichael and Detective Moises Beltran arrest the criminals. Riley identifies them but a corrupt judge releases the criminals claiming lack of evidences. Riley vanishes and five years later, the criminals are found dead in the Carnival where Chris and Carly were killed. FBI Agent Lisa Inman goes to Los Angeles and explains that Riley robbed the bank where she worked and moved to Asia, where she became a fighter. Now she has returned to Los Angeles and robbed a gun store and is beginning her vengeance seeking out justice to her family. The police with the support of the FBI and Diego's gang are hunting her down.