Addison doubts her abilities; Cristina pushes Burke's rehabilitation; an intern suffers a medical emergency.
The BAU track a conflicted killer in Virginia who feels remorse after committing crimes, while Rossi receives a visitor.
Benson goes undercover after a series of rapes is linked to a speed dating service, finding a medical surgeon who enjoys having control over the women in his life.
Michael determines to get his hands on T-Bag; Lincoln and Mahone square off; Sarah faces judgement day; Kellerman decides his own fate.
After a neighbour is stabbed, Dr Choi asks April for help figuring out the true cause of the incident; Noah misdiagnoses a patient; Dr Reese's estranged father becomes Dr Charles' patient.