Grammar correction

Hi, is this sentence grammatically correct?

Krishna is living a happy married life in Mumbai with his wife Priya and scientist dad Rohit. Krishna unsuccessfully tries to hold down a day job while also helping those in need via his secret superhero identity Krrish. When Rohit and Krishna find an antidote to a deadly virus unleashed in Mumbai by Kaal, the evil genius sends his mutant henchmen to find out how. With lives on the line, Rohit, Priya and Krishna must face an enemy who has the power to destroy them all.