When he heard that Jesus had come out of Judea into Galilee, he went to him, and begged him that he would come down and heal his son, for he was at the point of death.
He's asking Jesus to go from Cana down to Capernaum, twenty miles, to heal his son. Of course, if you've got a son that's dying and you're the dad, you're going to be desperate. You're going to do your best if you feel that, "Here's a man that can help my dying son."