When the crew of the Yamato battled the Dark Nebula Empire, saving Desslar and the remnants of Gammilon, while losing Iscandar and Starsha, they opened an entire new can of worms that led to this conflict. The Dark Nebula Empire invades earth, kills Mamoru and captures Yuki. All that's left is for the Yamato to take the saving of earth on the shoulders of her crew again. A fine movie.

Definetely, without a doubt, Be Forever has the best beginning of any Yamato movie or series! The Dark Empire's invasionary force is truly awesome and formidable, and Earth's solar system gets its biggest asskicking in the shortest time ever. Some of the Empire's attack vehicles resemble mecha from the War of the Worlds, book AND movie. Empire sky-troopers are incredibly sadistic in their first attack on Earth. The Dark Empire wants revenge on Yamato and Earth for their defeat in the previous/third movie Yamato New Voyage. We see Alex Wildstar again and...another member of the Wildstar family. There is a scene at the Empire's homeworld that is aweing and surreal, I had to rewind and watch it twice initially. The sap factor was heavy in Be Forever even for a Yamato storyline. The last explosion is the biggest explosion ever in Yamato.