Lacey mason is a trainee teacher at Waterloo road. She soon sets her eyes on the man who is training her and who also happens to be her boss, tom Clarkson. Lacey is aware that tom is in a relationship but she doesn't seem to care. Lacey wants tom and Lacey always gets what she wants. It doesn't take long before Lacey and tom are in bed together and it isn't a one time thing. Lacey and tom continue to sleep together behind his girlfriends back but when Lacey discovers that she is pregnant everything changes as she realises she has to grow up. Can Lacey and tom keep it hidden that he is the father or will it all blow up?