This mission is unlocked if the player chose to tell Quentin Barnes about Becca Collins's past at the end of Mission: Bad Tidings. Over the radio, Becca asks the player to find Quentin who has been missing for a while.
After Quentin has been found, the player receives a call from Becca, saying they are under fire by some strangers. Upon returning to The Grange, the player will find Becca dead and the remaining enclave members missing. Quentin then asks to be left alone.
The mission ends after the player leaves the area.
- After this mission, the enclave will disappear and the building becomes available as an outpost. Quentin is never found after that, although he is likely still alive, as his "Construction Advice" radio command is still available after the mission.