A brilliant scientist, Galen Erso was coerced into using kyber crystals to enhance energy yields – work his friend Orson Krennic then weaponized to create the Death Star’s superlaser. Galen fled to remote Lah’mu with his family, but Krennic tracked him down and forced him to resume his work. Trapped, Galen seeks to build a fatal flaw into the Death Star and reveal it to the Alliance.
The plans for the Empire’s ultimate weapon reside in a electromagnetic cartridge in the Structural Engineering node of the Scarif vault’s datatree. The plans contain the Death Star’s entire design history, including the flaw introduced into its reactor system. Stolen by Jyn Erso, they are beamed to the Profundity, copied and hidden in the memory systems of a humble astromech droid.
A rugged planet in the Outer Rim’s Bheriz sector, Eadu is known – to the extent it’s known at all – for its rain and native nerf herders. Few suspect the planet is home to a top-secret laboratory where Imperial scientists working for the Tarkin Initiative seek to unlock the secrets of kyber crystals and perfect a terrifying weapon.