The Bentusi inform the Hiigarans that they must find Balcora Gate, left behind by the Progenitors, behind which is something essential for stopping either the Vaygr threat, the End Times, or both. The Hiigarans find a Progenitor Dreadnought in the wreckage of a massive vessel, and find that it is required to unlock Balcora Gate. The Great Harbor Ship of Bentus, last of the Bentusi, sacrifices itself after being ambushed in a Progenitor AI attack, leaving its Core for the Hiigarans to claim in order to stop Makaan. But the Warlord learns of the Balcora Gate as well, and the game's penultimate mission takes place on the other side, where Hiigarans and Vaygr alike discover that Sajuuk is in fact a Mothership-sized Progenitor starship, with sockets for the Three Hyperspace Cores.