With the rubble cleared, Ronnie will lead the Sole Survivor into the tunnels. The tunnel will be blocked by some rubble, which is easily cleared by scrapping it via the Castle workshop. After talking to Ronnie again, she will lead the Sole Survivor to an alternate entrance: a tunnel in the general's quarters in the east corner of the Castle walls. The door cannot be opened from the outside. She will then lead them to the steel door on the west wall of the Castle. After speaking about her prior involvement with the Minutemen, Ronnie will inform the Sole Survivor of an armory hidden in the west bastion of the Castle that only she knows how to access. To begin the quest the Sole Survivor must travel to the Castle and talk to Ronnie (the scenes with Preston and Radio Freedom are optional). Tuning in to Radio Freedom will play a scene where Ronnie tells the Sole Survivor to 'get your heinie to the Castle pronto.' Preston Garvey will inform the Sole Survivor that the Castle has been trying to reach them via radio.

Approximately three days after the Minutemen retake the Castle, Ronnie Shaw will arrive there seeking out the Sole Survivor.

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