Brought up as Natasha for 15 years, Jon can remember feeling male since he was only five years old.

Jon is a typical teenage boy in all respects except one: he was born a girl. He has now been diagnosed with gender dysphoria, a condition that affects over 100 British children every year, and is embarking on an extraordinary journey of transition. Director Julia Moon follows mother and son through the first three months of Jon's life-changing treatment as the testosterone pushes his female body into male puberty.