The Ending is literally Smaug Prevailing and flying towards laketown leaving the game with a dark ending. Which was a saving grace since the rest of the game was buggy with constant crashes and frame rate issues, all the dwarfves are just gimmick characters and by about 25% through the game it becomes tedious constant switching. of course they had to adapt the movie version and it just about manages to do that. One of the only lego games i out right refuse to 100%