Champion Granny's Last Stand for Family

Maria was once a kickboxing champion. In order to save her daughter who was suffering from domestic violence, she accidentally killed someone and endured thirty years in prison. Just before her release from prison, she learned that her daughter had passed away, leaving behind only her granddaughter and a suicide note that said, "Be a good person." When she moved into her daughter's former residence, she encountered the evil neighbors. So she began to fight with them and protect others.