 Mulder's search for evidence of such a craft leads to him diving to the bottom of Great Sacandaga Lake to find it; while Scully is ambushed by an assassin seeking to kill a military witness, leading to her colleague Pendrell (Brendan Beiser) being shot.Mulder is caught by a group of commandos after swimming to shore.In Washington, Scully tends to the critically wounded Pendrell while Scott Garrett, a Man in Black, escapes.