The Dark Pool (In the President's Service: Episode 2)

Helen Meeker is up against impossible odds as she races against time to rescue both her sister and her partner. To further complicate matters, however, behind-the-scenes experiments threaten the very survival of Western civilization.
From the halls of the White House to the hidden laboratory of a diabolical scientist to the foreign fields of battle, a pervading evil moves ever closer to the successful overthrow of all that is good. Will Helen Meeker be able to stem the tide…or will she be swept away in its dark undercurrent?