In the exciting fourth season, we fast-forward six years, discovering that Nikki (Esther Smith) and Jason (Rafe Spall) are experienced adopters having built a lovely little nuclear family, enriched by an extraordinary support network. However, as their teenage daughter, Princess (Scarlett Rayner), starts to yearn for a connection with her birth mother, Nikki and Jason find themselves confronted with the ultimate test of their parenting skills.“老婆,真的很谢谢你,你为了让我开心,你还特意去学做蛋糕,很辛苦吧?”莫绍霆握着她的手,冷一念从小到大,都是被别人照顾着,就连下厨房也很少,现在,她却为了他,而去学着做这些她本来不应该去做的事情。……