It was prophesised to Kans, the wicked King of Mathura, that the eighth child born to his sister Devaki and her husband Vasudev would be his nemesis. So he killed seven of their children, but the eighth child bron was Krishna. Krishna- the pratham purush, the first and only pricipal that made this universe manifest and created humanity. Watch this movie to see the destruction of Kans by a mere stripling of a lad.