Phil and Claire meet Dylan's hippy mum, who turns out to have a very interesting past. Then, Cam and Mitch make a discovery in Lily's room.
Haley and Dylan's plan to quietly elope before the babies are born doesn't go as smoothly as they had hoped. Elsewhere, Jay continues to try and get his new business off the ground by courting an Instagram celebrity.
The Dunphy house is bursting at the seams when Dylan's hippie mother moves in and Claire's lonely stepdad, Jerry, wants to pay them a visit.