Gap Year describes a year in the life of a young South London couple wanting a baby and everything that happens to screw it up. Tom and Sophie are desperately trying to start a family, but without success. Feeling under increasing pressure to perform at home and at work, Tom loses control. His actions lead to a breakdown in their relationship and he winds up having an affair with Lucy, a much younger woman. He ends the tryst and returns to his wife, but one small fight pushes him over the edge and he leaves her. When Tom then discovers Lucy is pregnant, he decides to stand by her side, despite the hostile feelings of her parents over their illicit affair. Meanwhile, Sophie manages to keep her life together after her husband?s abandonment. But what Tom doesn?t yet realize is that he has not only left Sophie, but their unborn child as well, the child they were desperate to have. Is there a chance they can still be a family?