Camille urges Lena to become more active on social media to get her business off the ground. Once on Instagram, Lena messages design advice to Tamryn, a famous social media influencer who ends up hiring Lena to design her child's play room. Meanwhile, Camille has doubts about Tamryn's intentions and warns Lena that the friendship is one-sided. Elsewhere, Martin takes over for Lena as Milo's room parent and investigates why Milo is feared by his classmates.
A newly divorced couple embrace the unconventional as they co-parent their children by trading residences each week, alternating between one living in the main house and the other in the garage apartment as they also adjust to being single for the first time in years. This new arrangement will land Lena and Martin in some precarious situations, with Lena's doting sensibilities and Type-A personality clashing with Martin's laid-back temperament as they attempt to raise the kids separately but together. What will Lena and Martin do with their unfamiliar moments of freedom? And how will they manage their feelings when this freedom is met with the nostalgia for what they once shared as a couple and their mutual longing for their family to be whole again? With the help of friends Arthur and Camille, plus Lena's sister, Maya, this former couple will explore what it means to live apart... under the same roof.