Tatum Tomlinson a 14 year old girl who lost contact with her family after a flash flood in her home town. She doesn't know If her mum and step-dad are alright, but after reuniting with her older brother Louis Tomlinson after a year of being in a hospital Tatum finds out her parents had passed in the flash. Tatum always wanted to protect people so she wanted to be a body guard. Paul One Direction's body guard and baby sitter decided to train her to protect the 1D lads. How will this work out? Find out in I'm his sister and body guard.