Jill Matson-Sachoff

Manny is preparing to leave for Columbia for a month. Meanwhile, Cam and Mitchell are celebrating the Supreme Court's landmark decision legalizing gay marriage in California.

Frankie's sister (Molly Shannon) offers to help at the house while Frankie studies for her finals for dental-assistant school; Axl tries not to act jealous when Cassidy's ex-boyfriend visits.

Zoe agrees to be maid of honor at Wanda and Tom's wedding; Lavon and George try to stop the construction of a shopping mall next to a local beach.

Mason Thornesmith's bratty 12-year-old kid wants to buy Rex from Robbie. Meanwhile, a masked flour thrower is on the loose in Hollywood Arts.

When a "cool" new couple moves in across the street, Reagan (Christina Applegate) and Chris (Will Arnett) become obsessed with finding out every detail about them. Elsewhere, Ava (Maya Rudolph) struggles with the fact that baby Amy does not like her, especially when she takes a liking to Calvin (Nick Cannon). Jennifer Hall also stars.

As Larry tries to get a secret side project going with Ben, Hugh and Rachel have a secret of their own; group distrust leads to group therapy.