The one thing you do not need when staging your adolescent rebellion, in a post-apocalyptic world, is to be pregnant. But Lalla does not know that she is pregnant because she is so young and she is grieving for her mother. Her father, a visionary, has prepared a ship for 500 survivors, which sails from England to who knows where. Only Lalla realises that there is something wrong - and I don't mean her pregnancy.
