Jack and Miguel meet for the first time as Jack prepares to meet Rebecca's parents for the first time. As Deja meets her new classmate Malik at a barbecue, sparks fly between the two.
A trip to the pool makes the young Big Three reflect on familial and romantic relationships. Kate and Toby adjust to having a new baby as Kate commits herself to caring for baby Jack.
As he tries to help Nicky, Kevin ends up bonding with Cassidy and her son. After a rough start, Kate befriends their new neighbor Gregory. Tess confides in Deja about her fears.
Randall steps up to save the day when Beth's big opening faces a crisis, leading to a heart-to-heart with Carol. Kevin makes a shocking decision that brings him closer to Nicky.
When Tess suffers a panic attack, Randall finds out a new fact that connects the generations of his family. A gift for Kate brings up issues regarding a former boyfriend.
Jack teaches young Randall how to golf, a talent that the adult Randall uses to connect to his fellow officials to gain ground for his ideas. Kevin and Cassidy's bond deepens.
When Deja skips school with Malik, the Pearsons invite Malik's parents to dinner to unexpected results. Jack struggles with insecurity as Randall bonds with his black teacher.
When Randall expresses his worry about Rebecca's health, their confrontation turns explosive as old wounds come to the surface. Malik steps in to share one of Deja's wishes with Beth.
Beth helps Deja navigate her feelings of resentment towards her mother. Nicky realizes that Jack has indirectly kept his memory alive with his kids. An incident at the cinema forces Rebecca to confront the truth about her fading memory.
Toby admits to the real reason he has been pulling away from Kate. Miguel and Randall clash as Rebecca seeks a diagnosis for her condition.
As the incident with the trespasser brings Randall's anxieties to the surface, he struggles to deal with a lifelong condition that has plagued him from childhood.
Kevin is pulled into the orbit of an old relationship after Sophie's mother dies, finding a common ground with Sophie over the loss of a parent.
Marc's true colors show after a disagreement with Kate. As Toby continues to struggle with Jack's blindness, Kate is forced to confront the cracks in her marriage.
As the Big Three come together, secrets come to the surface that they struggle to work through. Toby starts to bond with baby Jack. Rebecca steps in to protect Kate from Marc.
As Randall stumbles in his search for treatment, Beth puts her foot down. Kevin supports Rebecca as she waits for her test results. Toby makes a big gesture for Kate and Jack.
Jack battles insecurities about his abilities as a father. As Randal and Kevin clash over the plans for Rebecca's treatment, Randall admits to lingering guilt over Jack's death.
As Randall imagines what life could be like if he had managed to save Jack, he comes to a realization about his feelings towards Rebecca in light of her lies.
At Jack's first birthday, tensions rise as Kevin confronts Randall about his part in convincing Rebecca to participate in the clinical trial. Madison reveals a shocking secret to the Pearsons.