Zachary Knower

A patient's desire to end her life triggers haunting memories for Hunt; Arizona and Callie have different opinions about the future.

A South Korean ambassador is a target for assassination at a state wedding. The plot thickens when another individual is gunned down instead.

Tension mounts between Jane and Maura; Jane and Maura investigate the death of a college student; Angela is upset by Frankie Sr.'s news.

As Nathan, Claire, Peter and HRG help Angela uncover her past, she reveals the dark secrets that have haunted her for years. Elsewhere, Mohinder learns of his father's involvement in a long forgotten government operation.

Stateside strife taints Holmes and Watson's fresh start in London when someone close to them is wounded by an unknown perpetrator in the US. Meanwhile, Holmes' stateside legal trouble threatens to derail their efforts.