Intellectually driven doctoral student Rosamund Stacey, while undertaking graduate work at the British Museum, becomes pregnant after a brief affair with a television newsreader. Against the advice of her best friend, Lydia, Rosamund chooses to keep the baby and adjusts her life to include both her studies and her pregnancy. However, when the baby is born, an unforeseen complication threatens the self-sufficient life Rosamund plans for herself.

All that is currently known to exist of the science-fiction detective series 'Sierra Nine' is on episode. Vic Pratt–lamenting the complete series' absence from the archives while celebrating the little that remains–introduces edited highlights of that episode and muses on what's missing.