Colin Hanlon

After closing on the sale of a house to Mitch and Cam's friends, Phil and Claire take the two of them out for a celebratory dinner where they proceed to over-indulge in drinks, which leads to some over-sharing, and finally results in waking up the next morning hung over and begging the question - if you'll do anything for family, shouldn't there still be a line drawn somewhere?

Claire has overdone it in Halloweens past and the neighbors definitely don't share her enthusiasm, so this year she's being forced to tone it down and keep it "kid-friendly," and Phil has an idea to hold an open house on Halloween night. Meanwhile, Mitch and Cam host a costume party while contending with Lily wondering who her real mom is, and Gloria's pregnancy hormones are on overdrive, making her even more hotheaded than usual.

Jay makes a big mistake when he tries to spice up his and Gloria's sex-life. Mitch looks to rub his new job in Cam's friends' faces.

The wedding day chaos continues as the entire party shifts from one contingency plan to another. Guests start to get testy, Mitchell and Cameron are feeling discouraged and poor Claire shows physical wear and tear, but an unexpected turn of events leads to the ceremony we've all been waiting for.