Fourteen-year-old Robbie lives in New Brighton across the River Mersey from Liverpool with his mum, Lynda and pain-in-the-neck nine year old sister, Katie. Ever since his dad, Joe, walked out when Robbie was just four years old, Robbie is a boy defined by the absence of a father. Ten years on, Robbie still feels hurt, angry and lost. Despite Lyndas failed relationship with Katies dad, Katie at least gets to see her dad every weekend, a part-time relationship which Robbie covets. All Robbie has ever wanted in life is a dad. Instead, he gets something very different...a son.