Yvonne Farrow

Alex gains the trust of Annie, a nervous patient with an extraordinarily large tumor, only to humiliate himself in front of her later. Meanwhile Derek chooses Meredith to assist with an elderly Parkinson’s patient who may need surgery -- but Bailey disapproves of their relationship and is determined to make Meredith suffer -- and tensions escalate between Burke and Shepherd.

Will tells Francie that he's been investigating the death of Danny. Sydney learns from Vaughn that her father may also be working for the FBI.

Sloane is told that Sydney is the SD-6 mole, putting her life in danger, Dixon is shot, and Will thinks Kate Jones' pin is the key to some unexpected information.

Sydney defies her father to rescue a kidnapped scientist, Francie uses an unsuspecting Will for his agency connections, and Sloane grows increasingly dangerous.

Sydney considers leaving the agency, Sloane kidnaps a scientist to help him piece together the mysterious Rambaldi device, and Dixon's wife learns the truth about his occupation.

A renegade Sloane holds the secrets to a mysterious Rambaldi device's powers, while Vaughn begs an uncooperative Dixon to help the CIA in rescuing Sydney.