As Cassie and Matthew come to the end of a divorce, a letter from their past selves surfaces suggesting guidance in the "event of separation". They agree to do the first thing on the list, only to find themselves drawn back together.
A tearaway teenage girl, at war with her mum, and trying to take control of her life, forms an amazing and unbreakable bond with a new friend. They raise hell, stick two fingers up at the world, and laugh like they never have before... but can Ellen avoid becoming just another statistic?
