Emergence 1x08 "American Chestnut" Season 1 Episode 8 Promo trailer HD - The FBI arrives in Southold, complicating Jo’s efforts to find Emily. Meanwhile, Alex and Piper hunt for answers on a road trip, and the family celebrates Mia’s birthday on “Emergence,” airing Tuesday, November 26th, on ABC. Episodes can also be viewed the next day on ABC.com, the ABC app and Hulu.