While Leo continues to recuperate after his heart attack, C.J. is named Chief of Staff. But her first day on the job isn't made easy when an emissary from the Republic of Georgia comes to the White House to offer the U.S. enriched uranium from a former Soviet reactor. Josh goes to the DCCC for tax cut support and meets Matthew Santos, a congressman and potential Presidential candidate from Texas. Meanwhile, Toby and Donna interview applicants to fill C.J.'s old position.