The victims of a rampaging gunman are brought into the ER. It soon develops that the man responsible for the shootings is Derek Fosson (Ted Marcoux), the father of the boy whom Greene (Anthony Edwards) treated for abuse in the previous episode. Fosson is out to kill anyone connected with the foster-care facility where his son is currently residing -- meaning that Greene and his family may be the next targets. Elsewhere, Abby (Maura Tierney) discusses her future with a disapproving Kovac (Goran Visnjic). And Weaver (Laura Innes) confronts Romano (Paul McCrane) over the firing of her former lover Legaspi (Elizabeth Mitchell). This final episode of ER's seventh season ends with a cliffhanger involving a grim life-or-death decision in a hospital elevator.
