This is an excellent character study--a look into Walt's inner conflict. He is all too willing to give up, to allow Johnny and Sarah to, in his mind, live happily ever after. But Johnny will have none of it--and as a result, "Destiny" is directly addressed--and things will begin to be reconciled...though doubts will still remain for a while.
Through a fascinating twist, Walt and Johnny develop a new understanding of one another--and Walt learning the truth coincides with the knowledge that Johnny is willing to give his own life for him....