This Is Us season 5 episode 5 will be arriving next year on NBC, with the title "A Long Road Home." The mystery surrounding Randall Pearson's (Sterling K. Brown) biological mother will be addressed here. While there's still a lot of question about her, someone who has a connection to her shows up again.

One of the preview photos of This Is Us season 5 episode 5 featured the mysterious Vietnamese fisherman named Hai (Vien Hong). The last time this character appeared in the series, he realized the connection between Randall and William Hill (Ron Cephas Jones).

The potential ties might be unraveled in the upcoming episode. This is also a chance to learn more about Randall's biological mother, Laurel (Jennifer C. Holmes). She will have a much larger story in the sixth episode, and some secrets might be revealed.

This Is Us season 5 episode 5 will be diving deeper into the world of the Pearson family. Randall could find out more about the circumstances of his past now that Hai shows up. But then, it's yet to be seen whether or not they're going to be meeting in person within this episode.

Meanwhile, Kate Pearson (Chrissy Metz) is the one who's going to have a huge storyline when the series returns. An unknown part of her past will be explored, something that involves her ex-boyfriend, Marc. She's been through a lot -- and mostly hurt -- while they were together.

This Is Us season 5 episode 5 will feature the teenage Kate (Hannah Zeile) and teenage Marc (Austin Abrams). In the fall finale, Kate found out she's pregnant and went to her ex-boyfriend shortly after finding the news. However, it remains unclear whether Marc is aware of his unborn baby.

Kate's pregnancy came out the time the Pearsons have been dealing through a lot. Her mother, Rebecca (Mandy Moore), mourns their father's, Jack (Milo Ventimiglia), death. Meanwhile, her then-teenage brothers Randall and Kevin (Justin Hartley) were focused on other matters.

This could be one of the major reasons why Kate decided to go to Marc instead. The latter was last seen in the series when Kate's mother and brothers threw him after discovering that he's emotionally and physically abused Kate. His presence could re-open the wounds of the Pearsons from the past.

This Is Us season 5 episode 5 is set to air on Tuesday, January 5, 2021, on NBC.