Rebecca depletes the hospital's blood supply while she and Bobby operate, and Colonel Marks is forced to call for a walking blood bank; Simon rekindles and old relationship; Rebecca is appointed morale officer; Vans finds a new talent.

Seven injured soldiers anxiously anticipate the arrival of their lucky charm, 19-year-old Pvt. Henry Flax; Rebecca makes a confession to Simon.

A prank gone wrong reveals Simon's painful past; Pedersen must question children about a suicide bomber.