sentences:  It was released fifteen years after the original "Men in Black" (1997) and ten years after the first sequel, "Men in Black II" (2002).Sonnenfeld and Steven Spielberg returned as director and executive producer, respectively.In the film, Boris the Animal, an old enemy of Agent K, escapes from prison and travels back in time to kill the younger K in order to allow his species, a ruthless alien race known as Boglodites, to attack Earth.