An airborne contamination alert locks down the West Wing, forcing staffers to stay put until the all-clear is sounded; Toby and Will face off over Will's working for the vice president; C.J. tells Donna some things she's rather not hear about Josh and her career prospects; Leo confronts Abbey about the dangers of her recent coping mechanisms; Jed, Debbie, and Charlie are poked, prodded, and sent to the decontamination showers; Kate is initially reluctant to give Josh any information on a personal or professional level as they sit out the alert together.

Jed weighs his options for responding to the bombing as Israeli and Palestinian forces face off against each other; Josh has an interesting reaction when Colin arrives at the hospital to visit Donna; Kate and Leo clash over the advice she's giving Jed; Josh assumes a diplomatic role when the Palestinians approach him to initiate settlement discussions; Toby and Charlie prepare a reluctant Jed for throwing out the first ball at Camden Yards; Donna's life is threatened when she develops a pulmonary embolism; Jed reflects on the days prior to his first inauguration.