Three women celebrate their birthdays - 30. 40. 50. But this milestone birthday marks the start of a year that will change everything. Ginger isn't spending her 30th the way she would've planned. Tonight might be the first night of the rest of her life - or a total disaster. Sam is finally pregnant after years of trying. When her waters break on the morning of her 40th birthday, she panics: forget labour, how is she going to be a mother? Callie is celebrating her 50th at a big party in her Dublin home. Then a knock at the door mid-party changes everything. Three women, three birthdays, one year that will change everything.