"Blue Bloods" has been a consistent performer on CBS, but it has had a few dark spots on its legacy. Although the show has generally received high ratings, one episode in Season 5, titled "In the Box," stands out as a noticeable decline in quality. Fans felt it missed the mark, criticizing the feel-good and far-fetched storyline, as well as the out-of-character portrayal of Tom Selleck's character, Frank. Despite this, "Blue Bloods" remains a bright light on Friday nights with a loyal following.