It might be a year after Derek was killed, but the pain still remains strong as ever — especially for his little sister, Amelia.
On the May 7 episode of Grey’s Anatomy, the Grey-Sloane Memorial Hospital is overwhelmed by a massive tragedy that leaves most of their patients dead on arrival. Meanwhile, Meredith (Ellen Pompeo) struggles to get back to her life after giving birth to her third child after Derek was killed, and Amelia (Caterina Scorsone) blames Meredith for not being able to say goodbye to her brother.

It’s finally time for Amelia Shepherd to live up to the hype she’s created, but can she really do it without the help of her big brother, Derek?
On the March 5 episode of Grey’s Anatomy, things take a very serious turn when Amelia (Caterina Scorsone) realizes she’s taken on much more than she can handle in trying to save Dr. Nicole Herman (Geena Davis). Meanwhile, Arizona (Jessica Capshaw) is forced into a pre-natal surgery by herself, which reveals whether or not she can really handle taking over for Dr. Herman.