In the midseason finale "Thunderstruck" (Season 19, Episode 6), Meredith Grey resigns to move to Boston just as a lightning strike burns down her house. The episode features intense drama with intern Lucas Adams revealing his connection to the Shepherd family and a high-stakes crossover case involving a Station 19 patient. Read the full recap at TV Fanatic . Grey's Anatomy Season 19 Episode 6 Recap: Thunderstruck