Appalachia is changing...the opening of Vault 76 was merely the beginning. The former Vault residents faced a homecoming far different than what they had expected...but the spirit of 76 endured.

New settlements now dot the landscape from the Toxic Valley to the Ash Heap...and MODUS has been watching.

For Major Lilith, she is faced with a new mission and homecoming of her own... to uncover the secrets of her Father’s research...and what she finds uncovers an even larger mystery of the history of post-war Appalachia.

And finally, Stein pays a visit to MODUS. He has questions...however, will the AI provide answers he wants to hear?