Grey's Anatomy (2005)

S21E1 If Walls Could Talk

Following the dismissal of several top staff members at Grey Sloan, Catherine persists in meddling with the research efforts of Meredith and Amelia. Meanwhile, a series of mishaps at a climate change demonstration leads to an influx of unusual cases at the hospital. Additionally, Bailey unexpectedly runs into someone from her past, stirring up old memories.