The fourth season of the adoption-themed comedy drama continues to explore complex family dynamics with a shift that advances the timeline by six years. The series focuses on Jason and Nikki, portrayed by Rafe Spall and Esther Smith, who now face the challenges of raising two adopted teenagers. One of these characters, played by Scarlett Rayner, grapples with questions about her birth mother, adding depth to the storyline by addressing themes of identity and belonging.

The season is noted for reaching a creative high point, with the show's narrative taking on more mature subject matter compared to previous installments. The beginning of the fifth season directly follows the dramatic conclusion of season four, maintaining continuity in the characters’ evolving stories. Critics have acknowledged the strength of the performances, particularly Rayner’s nuanced portrayal of a young person confronting complex emotions linked to adoption.

However, some viewers and reviewers have expressed reservations about the soundtrack, specifically citing the frequent use of a sentimental musical score during emotional scenes. This element has been described as overly sweet and detracting from the otherwise thoughtful handling of the show’s themes.

Overall, the series continues to tackle adoption issues with a blend of humor and sincerity, highlighting the difficulties and nuances associated with family life in adoptive households as children reach adolescence.