Sienna goes to stay with her brother Jack and his band over the summer since her family had moved there she was not known to the why dont we fandom because Jack didnt want her to be overwhelmed with fake people so they've stayed pretty quiet about it shes been staying in Pennsylvania with her moms bestfriend because of her bestfriend Kaylee who was forcing her to stay until they finished highschool and could move out to Los Angeles together what happens when the summer brings on a new relationship with Daniel one of Jacks bandmates