Watch A Vigilante (2018) HD Full Movie Free on SolarMovie. Watch A Vigilante (2018) online free. After escaping her violent husband, Sadie makes it her life's mission to help free others in danger....After escaping her violent husband, Sadie makes it her life's mission to help free others in danger. After months of rigorous training in survival skills, boxing, and lethal martial arts, she is back with a vengeance.