After a party with her every-growing family, Jo Jones reflects on her life. She recalls her time living with her parents, the with her military Uncle Giles; attending a nearby boarding school; and an encounter with a strange woman called ‘Aunty Iris’, who foretold her travelling to other planets. After her nineteenth birthday, Jo’s uncle got her a job with a top-secret organisation called the United Nations Intelligence Taskforce, led by Brigadier Alistair Lethbridge-Stewart. Jo threw herself into her training, and a year later she was assigned to assist the Doctor. It was a time she thinks of fondly, of a best friend whom she loved dearly…