Anna goes into cardiac arrest and is revived, but when she and Campbell are rushed to the hospital, the doctor informs Sara and Brian that Anna is brain-dead and asks them if they have considered organ donation. An injured Campbell steps in and declares that he, as the one who has the power of attorney, allows the donation and Anna's kidney is successfully transplanted. Kate survives the surgery but Sara and Brian are devastated: after so many years lived hoping to not see their first daughter die, the death of Anna is something completely unexpected and utterly unfair, but there's nothing anyone can do so the life-support machines are shut off.