Things change, from when you were young. Once, Delilah Cook lived in Sydney, was best friends with a boy called Luke Hemmings, and had big dreams of being a singer. Then the terrible, tragic and unexpected happened. Now, Delilah lives in Melbourne, is recently signed music artist, has a best friend named Emilia Jones and doesn’t think about Luke anymore. At least, that’s what she tells herself. But when Delilah finds herself on a tour with the 5SOS boys of her past, what could possibly go wrong?

Being Michael Clifford's sister is nothing but a burden. Skyler hates the fact she has to put up with his horrible pranks and behaviour. That is until he becomes friends with 3 very attractive boys with the names of Calum, Luke and Ashton.