Derek Armstrong

While working in England, an American surgeon Dr. John Marlowe is invited to Vosnia (a fictitious East-European country) to receive an award and demonstrate his life-saving surgery. Unwittingly caught in the middle of a dangerous and corrupt series of political events, Marlowe then becomes the object of a shoot-to-kill, vicious pursuit. Fleeing, he seeks help from an English-speaking actress, Lisa Robinson, and the two attempt to escape across the treacherous mountains of Vosnia.

A look at Derby's Railway Technical Centre, which exists to apply science to the practical problems arising from a changing railway system which has its roots in the past.

Derek Armstrong’s 1975 Shell Film Unit instructional series on aerodynamics, explaining the relationship between lift and weight as the foundational forces that keep an aircraft flying. (Note: This is an update of the 1947 film series of the same name.)