Jokul Frosti Unleashed

Jack has been hiding something from his past. A secret so powerful it could kill. When the time comes and it's up to the Guardians and there new friends, can they rewrite fate or will they lose the very thing they are trying to protect? (Rated M because of violence, blood, death and language[Also because I'm paranoid])(This is my first story so don't judge to harshly please)