When Poppy's ex-husband, Ron, gets serious with his latest girlfriend, Poppy has to deal with the reality of another woman helping to raise her kid. The secret gets out that Sophie has a crush on Graham, which causes a stir not only in the first-grade classroom, but also between Angie and Will. Meanwhile, Miggy gets cold feet after asking Douglas to remove his tattoo of Zara's initials, and Douglas has to help him realize that his relationship with Zara is officially over.

After Will realizes he forgot to send in Sophie's deposit for space camp, he must woo the owner of the company, Lance Bass, in order to get her spot at camp back. Meanwhile, the twins' grandmother shows up wanting more time with Amy and Emma during the summer, causing Douglas to spin; and Poppy deals with unwanted old feelings for her ex Ron as she helps him plan his wedding.

When Sharon goes into labor, Poppy and the gang step up to help her get to the hospital, telling each of their own birth stories to help distract her from Ron’s absence.