While waiting for a call from Dr. Sam, Will teaches Marcus how to play poker. Marcus suggests Will call Sam, but he prefers to wait it out; a wild poker night with his friends will help him pass the time. Marcus has his very first sleepover coming up at his potential friend Jackson's house. He's a little nervous because his lack of social reputation is hanging in the balance. Fiona has packed everything Marcus will need, including his dreamcatcher and pajamas with a cell phone pocket, should he need to call her in the middle of the night. Fiona's looking forward to a big night on her own: a good book, meditation and cheese curd straining. It's the first night she's spent apart from Marcus ever, and while the prospect of doing exactly what she wants to do sounds great, in practice, Fiona's bored to tears.
The crazy poker night of Will's dreams quickly becomes less than: Andy has to be in bed in time for Colbert; Richard brought his own lumbar pillow; and Crosby has brought his baby daughter, who's going through an epic poop cycle. Will is predictably pissy when Crosby asks to be dealt out to attend to his daughter's diaper, so Andy tells everyone Will's really upset because Dr. Sam still hasn't called. With the diaper on the table, TJ heads to the yard for a piss and encounters Fiona, who has just begun meditating. Admiring her accent and knowing they're short a player, TJ invites Fiona to sit it on the game, much to Will's chagrin. Fiona brings hummus, leads a yoga session and does shots with everyone but Will, so it's not long before the guys nominate her permanent dealer. When Will receives a terse text from Dr. Sam, it's the last straw. He pushes Fiona out of the game and out of his house by commenting that her only friend is her son. Ironically, it's this comment that sends all of Will's other friends over to Fiona's. They're pretty drunk when Marcus calls to say he's not built for sleepovers and the scary movies that go with them - he needs to come home now!
With nowhere else to turn, Fiona asks Will to drive her to Jackson's house to collect Marcus. She apologizes for ruining poker night, allowing that it's the most fun she's had in a long time - it's nice to feel like she belongs. Will has to admit Fiona's a pretty fun poker player. She doesn't want Marcus to abandon his sleepover, but she's too drunk to make the case, so Will speaks for her. Scary movies are just like going to the dentist - all Marcus needs to do is cut out the sound and the scare is off. Will hands over his iPod, asking Marcus not to judge, then points him to track 17. Problem solved!
Fiona deals herself into Will's poker game, while Marcus goes on his first sleepover. Dax Shepard guest stars.