This family plot device is really not 24ish to me, don't know why they plugged it in but it took me away from the vibe. I heard Kiefer hung around all summer when the writers were plotting, wouldn't be surprised if He had something to do with it, but it doesn't work for me, especially springing Paul McCrane as Jack's brother... no, never blindside the audience with stuff like that, that was obviously conceived recently... and if Jack was to have a Dad I REALLY WISH IT WAS HIS DAD Donald... probably asked and rejected...
But this weeks 2-parter really got things back on track IMO.