After a member of the President's staff is murdered, Ellen urges Duncan to back out of the assassination plot, while other members of the President's staff take matters into their own hands. Meanwhile, after scouring Nina's medical records, Ellen finds someone who might be a viable bone marrow donor.

When Brian goes to the police to expose Duncan and his team, he decides against telling the truth after Burton shows up and shows him evidence of Ellen and Duncan getting close. Meanwhile, Duncan's trip to New York City puts a snag in the plans to take out the President.