If you are referring to the intense real-life documentary series following emergency responders working the overnight shift: " The Darkest Shift on the Scariest Night "
If you are looking at the science fiction franchise, this is a webisode miniseries that expands on the events of The Expanse . " Night Watch " [S1E4] Night Watch
The phrase or its variations can refer to several completely different television programs. If you are referring to the intense real-life
The Cooper siblings travel to the historic city of York, England. They do a "night watch" over local folklore, exploring the narrow streets and visiting a haunted local cinema to investigate ghostly legends with their signature brand of humor. [S1E4] Night Watch