003 Bob & Carol & Ted & Alice

It's 1969 and Bob and Carol are two squares who get their minds open after attending some fantastically good talk therapy. And once the minds are open then so are the legs! It's what the world needs now. But why does Alice's therapist look at her like that? And who is responsible for the maintenance of Elliot Gould's back hair? But first up, Woodstock? Seriously?