Spoilers
“Unrequited”

“Unrequited” was an episode of the X-Files dealing with the idea that there were POWs left behind in Vietnam by the US military and that one of the soldiers left behind was back to take vengeance on those who left him behind.
Oh, and that soldier is able to turn invisible.
The show uses the same shot at the beginning of the episode and then repeats it in the third act which feels fairly lazy. The story itself was lacking a bit. The middle part of the episode does not feel as tense as the ending.
How many times can you see someone and then not see them? It turned the episode fairly repetitive and the conclusion felt somewhat anticlimatic.
Overall, I liked the concept, but the story and the characters did not feel as flesh out as it could have been and was just another excuse to have Mulder and Scully wonder about the corruption of the government.