[s11e8] Risk -

The title "" refers to the eighth episode and mid-season finale of the 11th season of the medical drama Grey's Anatomy , originally aired on November 20, 2014. Plot Overview

: Arizona Robbins continues to struggle with keeping Dr. Herman’s terminal brain tumor a secret while trying to learn as much as possible from her mentor. Key Cast & Characters [S11E8] Risk

The episode centers on professional and personal conflicts among the surgeons at Grey Sloan Memorial Hospital: The title "" refers to the eighth episode

: A disagreement over a patient with a complex brain and heart infection escalates into a major argument. This ultimately leads to the decision that Derek will move to Washington, D.C., to work for the President, leaving their marriage in a fragile state. Key Cast & Characters The episode centers on

: Callie feels intense guilt after a veteran in her robotic limb project is pushed too far during physical therapy, resulting in a fall that jeopardizes his progress.

: Stephanie Edwards performs a routine ultrasound on April Kepner, which unexpectedly reveals a lethal birth defect (Osteogenesis Imperfecta Type II) in April and Jackson’s unborn baby.