Stannis faces a difficult decision; Jon returns to the Wall; Mace visits the Iron Bank; Arya encounters someone from her past; Dany oversees a celebration of athleticism.
Louisa is disturbed at the growing intimacy between Martin and his old flame, Dr Edith Montgomery, and she resents Martin's 'old fashioned' objection to her getting her school headmistress job back.
The Doctor takes Martha to New Earth, in the far future, only to find that an entire city has become a deadly trap.