Mia delays her first chemotherapy treatment to accommodate an important visitor on Valentine's Day, and later, in the dark of a long day's night, Zac does what he can to bring a smile to her face.
A surprise visit from Zac's best friend Cam serves as the reality check that Zac doesn't need, and on the other side of the wall, Mia inquires about the voice behind her late night lullaby.
When Joe says the A word for the first time, Paul and Alison know they must talk to him about his autism. Maurice is catapulted back into the life of Louise, and Eddie and Nicola have a secret to keep.
Zac suffers the unfortunate consequences of his recent impulsive decision, and Mia opens up to a new confidante.
As things are looking up, an unexpected guest arriving at just the wrong time leaves Zac feeling hopeless.
Zac lets Mia in on his private hobby, and ultimately brightens up her otherwise lonesome night in the hospital.
Zac is enjoying his 18th birthday until he receives crushing news, and a stubborn Mia prioritizes prom over her health.
Make A Wish officially grants Zac a wish, and an ensuing late night video chat with Mia takes an unexpected twist.
In a spontaneous turn of events, Mia realizes it's time to put someone else's needs before her own and surprises Zac.
As Mia begins to wrap her head around her new situation, Zac receives clarity on his Make A Wish.
Ria fights for control over the Swallow family's upcoming performance at a college campus as Ken and Meg try to reclaim their cool.
Daniel meets a dedicated MSU cowbell ringer, introduces a responsible way to help out children and puts his efforts into raising money for a cat's butthole.
Mindy and Danny can't agree on the best way to care for an ailing Annette. Meanwhile, Anna throws a disastrous bridal-slash-baby shower for Tamra, where Colette has a heated confrontation with Jody.
Amy's rich uncle is coming to visit, so Amy enlists the help of a hobo with a foot fetish and a neighbor with a platter fetish to prove that all it takes to appear rich is a little creativity.
Bill and the guys customize a brand new 2017 F350 with less than 600 miles on it. They lower it with their handmade air ride and add a one-of-a-kind gooseneck hitch. The owner of a 2014 Porsche 911 wants her sports car to sound as good as it looks.