Tour of Duty Season 01 Episode 20 " Angel of Mercy "

Lt. Goldman is shot loading a captured, injured VC colonel onto a helicopter. At the base hospital, he learns that Nikki Raines, the nurse he is in love with, had an abortion and she wants to break up with him because he is a soldier, a bad risk. The ARVN aide to the intelligence officer who wants to question the VC colonel tries to kill the colonel so that he cannot reveal the plans for a big offensive at the Tet.