The Top 14 junior home cooks receive a mystery box challenge inspired by the White House garden from former First Lady Michelle Obama. The young cooks must come up with an original recipe that is both healthy and presidential worthy, and the winner will receive a special once-in-a-lifetime opportunity! For the next challenge, Julie Bowen steps into the MasterChef kitchen to watch the kids make a dish in honor of their moms. Then, it's up to the judges to decide which contestant will go home.