The Fall of Gondolin (Middle-Earth Universe)

Gondolin, a breathtaking yet hidden city, lies at the heart of the conflict between two formidable forces. Morgoth, the embodiment of evil, desperately seeks to uncover the city of his Elven foes, while the gods in Valinor refuse to back Ulmo, Lord of Waters' plans to safeguard it.

Enter Tuor, cousin of Trin, guided secretly by Ulmo, who embarks on a perilous journey to Gondolin to warn them of their impending doom. Upon learning the city's secrets through a supreme act of betrayal, Morgoth launches a catastrophic assault with Balrogs, dragons, and countless Orcs.