After discovering the Gortys Project, it is a mad rush to find out what the Atlas Corporation was up to before Pandora was taken over by Hyperion.

Rhys and Fiona are not the only ones hunting for the Vault. Vault hunters, bounty hunters, Vasquez and a giant monster wants a piece of the vault. To further complicate matters, Rhys is being haunted by nightmares of a dead despot