As if the episode revealing Jack's cause of death wasn't enough for us this season, the writers of This is Us have decided to TORTURE us for the finale episode. It airs tomorrow night (3/13) but they've released a season preview clip.. The torture comes in the form of a "what could have been" portrayal of Kate and Toby's wedding day - one where Jack is alive. Just the mere seconds of Jack and Rebecca being together in present day is enough to make me grab the tissues. Oh how I love the Pearsons.