An Alien Enemy (1918)

Neysa von Igel who is living with her supposed grandfather Adolph Schmidt loves America although she believes herself to be Germanborn Unknown to Neysa when she was three years old her father and mother both Americanborn were killed in Germany by Emil Koenig who in punishment was sent to the United States to work in the interest of the government of the Fatherland and who is now associated with Schmidt in his manufacturing enterprise Koenig demands that Neysa work in behalf of Germany She revolts and escapes to the home of David Hale who had been her grandfathers attorney but who is now in the service of the United States Government Hale and Neysa are married and depart for France where the girl again encounters Koenig and after many thrilling adventures she kills him in selfdefense Written by Moving Picture World synopsis from IMDBcom