This film is a tale of two worlds colliding and the formation of friendship through life-changing experiences. Iona is a 15-year-old British girl who lives on a floating hospital that sails around the world, and Grace is a Congolese teenager, whose life has been shattered by the growth of an enormous tumor on her face. At the moment the Floating Hospital is based in Congo, in West Africa. Grace and her mum have travelled days from Kinshasa to the ship, hoping that the doctors on board will be able to help. Her life is incredibly difficult - she doesn't go out or go to school because of the tumour on her face. But it's not just about how Grace looks - if not treated she will die. Iona takes us onboard her home and we meet the people who live and work on the ship. Grace and Iona don't speak the same language but they find a way to overcome the barriers and we're with them all the way as Grace's life is transformed forever.