Well, we can't say series creator Dan Fogelman didn't warn us. Periodically during this Emmy-winning drama's run, Fogelman has told journalists the time-hopping saga of the Pearson clan will span six seasons, which end tonight in a series finale that's bound to tug at the heartstrings. Just as predictably, Fogelman is playing it close to the vest when it comes to story revelations, although star Milo Ventimiglia – who plays patriarch Jack Pearson – promises "It's truly, truly going to deliver." Sterling K. Brown and Mandy Moore also star.