Addison has resigned herself to the fact that she's never going to have a baby. That doesn't mean she doesn't want to make preparations for Amelia, who is reluctant to get an ultrasound because that would mean accepting that her baby is real. Addy gives her friend a firsthand look at the miracle of childbirth with a new mom. Suddenly, Amelia is totally jazzed about doing the mommy thing. She's also a little concerned about Sheldon once she learns he has to go see his ex-wife.
Mason has convinced himself that his mom is going to get better. That's not going to happen. Erica's condition is deteriorating quickly. She's adamant about not seeing Mason. Erica is so scared. Charlotte promises to be there for her the entire time. As for Mason, he wants to pray for his mom, so his dad shows him how. Charlotte hangs with Mason so that Cooper can say goodbye to Erica. He lets her know that she did an amazing job raising Mason alone. She lets Coop know that she's so glad he's Mason's dad.
As the end draws near for Erica, Charlotte pleads with her to let Mason visit one last time. She says, "Our son needs to see you." Finally, Erica agrees. Charlotte races to find Cooper. They bring Mason up to Erica's room. He's hesitant to go in at first, but then he courageously climbs into his mom's bed to tell her how much he loves her. He made it there just in time as these are the last words Erica hears before taking her final breath.