The band 5sos' career just took off and they are so happy! They've got fans from all over the world and girls trying to break down their doors but what happens when four mysterious fan-girls turn their world upside down! Sarah, Jordyn, Ryanne, and Sydney have been friends since they were kids but after they start hanging out with 5sos secrets are unveiled and friendships are tested! Is their friendship strong enough to hold through the loss of a friend? What happens when exes show up? These girls lives are about to change forever.