of grazed, cannoned, ploughed, aggresive, demonstration and pummelled

A cow was grazing on the grass of the farm when an unidentified object, which looked like a ball or something, was cannoned into the field and the ball hit the cow and the cow plummeted down the hill which the farmer was situated on. On another hill, an aggressive captain was doing some demonstration to the team. The farmer did not notice the cow until he found the cow he needed to plough the rice field on the edge of the field, dead. The farmer pummeled the dead cow.