From publisher blurb:
The amazing conclusion to the epic Seven Worlds RPG campaign!
The future of humanity hangs in the balance as the heroes race against time to save Earth from the fearsome Devourers. As the heroes infiltrate a Devourer base, they finally meet the aliens and discover how truly terrifying their enemies are. Then, while the final assault on Earth rages on, they must face the leader of the Psion Brotherhood and wrest from him the secret that can stop the invaders before their Home Planet is obliterated!
Endgame also includes several suggestions and short starters for adventuring in the universe of the Seven Worlds once the main campaign wraps up!