Instead, he sends his son to finish the job. The Hobbit film trilogy The Desolation of Smaugīolg first appears, this time to inform his gather that he is being summoned to dol Guldur by 'the master.' After Azog is told by Sauron he cannot continue his revenge quest on Thorin. At that moment, in his bear form, Beorn attacked both of the bodyguards and eventually crushed Bolg, thus killing him. Then, Fíli and Kíli were killed by Orcs trying to protect their fallen Uncle. He entered a fatal duel with Thorin Oakenshield, whom he had mortally wounded. During the Battle of Five Armies, he acted as a Commander in Sauron's forces and took two bodyguards with him. Having a personal vendetta against the Dwarves since the war between the dwarves and the Orcs. he eventually learned that Thorin Oakenshield and his company of thirteen dwarves and one Hobbit are traveling to the Lonely Mountain and intend to reclaim the lost dwarf City from Smaug.
He has resettled in the old refuge in Mount Gundabad after the kingdom of Angmar was abandoned, and apparently ruled goblins of the Misty Mountains from their capital at Mount Gundabad. In the original book of The Hobbit, Bolg was the son of Azog the Defiler, succeeding him after his death in the Battle of Azanulbizar in TA 2799 by Dáin Ironfoot.
