2014 год. Alfie and his mum and baby sister, Annie Rose, arrive home after shopping. While his mum struggles with the pushchair outside, Alfie rushes inside and slams the door behind him. So now Alfie's stuck INSIDE and his mum and Annie Rose are stuck OUTSIDE without a key! Soon everyone in the street is trying to help rescue Alfie - but he's got a plan of his own . . .