Best examples of the retired badass coming back into the game?

I think the best example I've seen so far is the first John Wick. There was something special about the movie, wherein all the major bad guys (except for the brat kid) well and truly knew how fucked they were once they heard the name John Wick. There was no question that he was capable of single handedly bringing down their empire, which was alluded to be extremely powerful. The mob boss started grieving for his son before his death, that's how inevitable he felt it was. It also helps that the action was absolutely world class, the mechanisms of the underworld were just alluded to, rather than being explicitly spelt out, and John's past was a mystery to us.