Grey’s Anatomy Season 21 Episode 1 – If Walls Could Talk – After firing some of Grey Sloan’s best, Catherine continues to interfere with Meredith and Amelia’s research. Accidents at a climate change protest bring unique cases to the hospital, and Bailey encounters a blast from the past. – Stream Grey’s Anatomy Season 21 Episode 1 Online for Free – Watch Grey’s Anatomy Season 21 Full Episode 1 Free – RARBG Official