7. Justified, 'The Promise' (2015)
For six seasons, Deputy U.S. Marshal Raylan Givens (Timothy Olyphant) served up Old West-style justice in modern-day Kentucky on FX. From 2010 to 2015, Justified racked up quite a body count. But the biggest twist the series finale offered was that the main characters actually made it out alive: Raylan moved to Florida to be with his daughter; Ava (Joelle Carter) and her son fled to California; and likable bad boy Boyd (Walton Goggins) went to prison instead of the grave. Hell, he even got a friendly-ish visit from Raylan in a flash-forward four years later. It was a bittersweet ending to a series that pitted the two men against each other for the entire run of the show (and bucked the Elmore Leonard novella that inspired the series, in which Boyd died). But for fans, it was nice to see their favorites walk off into the sunset.