 Season 11 begins with new surgical residents coming to the hospital . Meredith is struggling with the idea that Maggie is actually her half sister because of her mother 's romance with Dr. Weber . Callie and Arizona 's relationship falls through after realising they both want different things at the time . April and Jackson learn heartbreaking news that their baby has a lethal birth defect , where April decides that she will carry the baby till full term no matter the consequences . They end up having a boy , Samuel , who dies shortly after birth . 
