5/5 Stanley is determined to continue Livingstone's quest to find the source of the Nile.
5/5 Mary Portas has finally found her calling as a window dresser at Harrods.
4/5 David Livingstone aims to solve the mystery of the Nile's source once and for all.
4/5 As Mary's father emerges from his grief, how will his new romance affect the family?
3/5 Samuel Baker and his mistress Florence go in search of Lake Albert.
3/5 Still reeling from her mother's death, 18-year-old Mary Portas must keep her family going.
2/5 Burton is too weak to travel so Speke heads for the Rusizi River alone.
2/5 It is 1974, and Mary is throwing herself into a world of flares, Marc Bolan and glam rock.
1/5 Richard Burton and John Speke leave for Africa in search of the source of the Nile.
1/5 Mary Portas recalls giggling at Holy Communion and playing pranks on her teachers.