The Party Parents take on the Megastack, but with it already wobbling, will they take the money and lock in their winnings, or push toward a $250,000 grand prize? From the series premiere of 'The Final Straw,' episode 3, 'What Happens in Granny's Attic, Stays in Granny's Attic.' Watch 'The Final Straw' SUNDAYS 9/8c on ABC. Stream on Hulu.