The Hobbit: The Battle of the Five Armies

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. Smaug's falling body crushes the Master of Laketown and his cronies, who were escaping on a boat with the town's gold. Bard becomes the new leader of Laketown and guides its people to seek refuge in the ruins of Dale. Thorin, having become possessive of the vast treasure in the mountain, searches obsessively for the Arkenstone, which Bilbo had previously found but kept hidden. Upon hearing that Laketown survivors have fled to Dale, he orders the entrance of the Lonely Mountain sealed off.