The Hobbit: The Battle Of The Five Armies (Extended) (2015)

Bilbo and the Dwarves watch from the Lonely Mountain as the dragon Smaug sets Laketown ablaze. Bard breaks out of prison, and eventually kills Smaug with the black arrow brought to him by his son Bain. Smaug's falling body crushes the fleeing Master of Laketown and his cronies, who were escaping on a boat laden with the town's gold. Bard reluctantly becomes the new leader of the people of Laketown as they seek refuge in the ruins of Dale, while Legolas travels to investigate Mount Gundabad with Tauriel. Thorin, now struck with "dragon sickness" over the vast treasure in the mountain, searches obsessively for the Arkenstone, which Bilbo had previously found but kept hidden. Thorin, hearing that Laketown survivors have fled to Dale, orders the entrance of the Lonely Mountain sealed off.