Fearless Hyena 2

The Yin-Yang brotherhood are threatened with extinction at the hands of evil martial artists Heaven and Earth, although two of their number manage to flee from their enemies with their two little boys. Twenty years later, the boys have grown up - one a skilled hunter (Jackie Chan), the other so lazy that he will not leave his bed. However, when their fathers finally succumb to the terror of Heaven and Earth, their children are forced to take revenge.