Don't worry. There are no spoilers in this review, because it would be unfair on those people not yet lucky enough to see this episode to lessen it's impact. Suffice it to say, this is the episode where Winnie Cooper returns to the series. The two childhood sweethearts, Winnie and Kevin went their separate ways after Winnie moved schools. The episode starts with Kevin seeing Winnie in their old street for the first time since the school coaches went in different directions to the strains of 'God Only Knows' by the Beach Boys. What is she looking for? Obviously, Kevin hopes that it's him, but there is a brittleness about Winnie that hints at a girl who's missing something but isn't sure what. As Kevin gets drawn back in to Winnie's world he starts to worry that she's looking for what's missing in all the wrong places. Anyone who has encountered an old flame after a while apart will identify with this episode which is about as deep and full of impact as a 25 minute TV show could be. Be prepared to shed tears at the end when the final song and situation blend together as perfectly as any I've ever seen in this show or indeed in any other. It is a perfect episode and the highpoint of even this great series.