All six episodes of the drama which follows the lives of its titular characters over the course of almost two decades. When Alice (Andrea Riseborough) goes on a date with Jack (Domhnall Gleeson), they immediately connect and the possibility of what they could be to each other is clear. However, Alice withdraws and so Jack moves on and marries Lynn (Aisling Bea). When Alice returns years later, Jack is torn between his wife and the woman he could never forget.