Phil and Claire decide to take a cycling tour through Italy before they become grandparents, and Dylan introduces them to his mom who has an interesting past. Meanwhile, Cameron and Mitchell discover some interesting reading material in Lily’s room and decide to confront her about it, while Gloria and Jay discover their respective great uncles may have fought on opposing sides of a war.

Haley and Dylan’s plan to quietly elope before the babies are born doesn’t go as smoothly as they had hoped. Meanwhile, 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 mom moves in and Claire’s lonely stepdad, Jerry, wants to pay them a visit. Meanwhile, Jay and Gloria attempt to help Manny get over his big breakup with Sherry.