<blockquote id="quote" class="ffs">quote:[i]
Should have guessed when we saw David as in pre-815 crash Jacks wife had a miscarriage so this is the son he would have had.
[/quote]

You've just solved a mystery for me as in what happened to Jack's son in the alternate reality and I forgot his wife had suffered a miscarriage.

Very sentimental ending I thought, but a damp squib in terms of finding out what on earth it was all about. Not enough was explained in the two hour finale as it concentrated too much on Jack v Lock. Could have done with another episode just to clarify a couple of points and make the alternative reality thing a bit clearer.