When 13-year-old Milo is sent to spend the summer holidays with his grandmother on the outskirts of a quiet town, he meets Oscar – a boy who has a serious heart condition, a dog-eared copy of Prince Caspian, and an imagination as vast as Narnia itself.

When Oscar is bullied, Milo must find the courage to be the friend he’s always wanted to be. And when the summer holidays draw to a close, Milo faces the hardest battle of all: saying goodbye and believing that life – like the best stories – never truly ends.