Isolated for millions of years, a land full of weird and wonderful wildlife.
Michael's guests are Camila Cabello, Harry Redknapp and Westlife.
Tess Daly and Claudia Winkleman host the Strictly Come Dancing live semi-final.
Newly qualified midwife Jenny arrives in the East End to embark on a challenging career.
Orphan Lyra's world is changed forever by her long-absent uncle's return from the north.
When Julia meets a younger man her adult children wonder if his intentions are noble.