The first half of the series in particular has a focus on war, predominantly WWII and Vietnam. The photos presented aren't very graphic but do feature imagery such as explosions, armed combat, etc.
Profanity
Mild
The episode THE D-DAY KNIGHT RETURNS includes the quote, "You won, little bastard. You won."
The episode THE HOUSE IN THE OCEAN uses the word "shit" in a comedic context. Only visible in the onscreen subtitles.
Frightening & Intense Scenes
Severe
Similarly to the Monument Mythos, the Nixonverse is characterized by its surreal, nightmarish aesthetic and imagery, often being considered even more bizarre than its parent series.