With her fifteenth birthday imminent, Tess is running out of time. The precious time to decide who - or what - she will choose to be when she makes the final switch of her life. And to make an impossible decision even worse, she finds herself bundled off to relatives in the country, miles from home, her parents and most importantly, Kevin. The country is wild and alien to Tess. The clock is ticking and the pressure is on to decide once and for all.