一个孩子（英语：One Child）是BBC“中国季”的一部电视剧，全剧共3集，每集60分钟左右。该剧讲述一个名叫梅·阿什莉的英国女孩，婴儿时期因中国的计划生育政策被英国养父母收养，一天她得知自己有一个素未谋面的名叫李军的兄弟，而李军将要为他从未犯过的谋杀罪被判处死刑的故事。

Mei, a young woman who was adopted from China as a baby, is dramatically pulled back into the land of her birth. As she embarks on a dangerous mission to save the brother she never knew, she is forced to confront the truth of who she truly is and what family really means.