O’Neill’s plan was to defeat Manus O'Donnell from the Kinel-Connell and thus be the only King in Ulster.

On hearing the testimony of the spying mission Calvagh decide to attack John O’Neill and his forces at his camp immediately.

The troops of Calvagh numbering two battalion’s marched on the O’Neill camp and began killing and slaughtering all before them.

John O’Neill on hearing the commotion in his camp realised that he was under attack and fearing for his life slipped out of the back of his tent.

Meanwhile back at battle site Calvagh and his men were in high spirits and enjoying the spoils of war.