Antonia Santos was the childhood best friend of Zach Herron, but more like an older sister. She left at 18 to pursue a career in acting, one that'd proven lucrative with her role in 'Riverdale'. Now 21, she runs into Zach and his band on the streets of LA. But once she reveals she's looking for somewhere to stay, the Texas native finds herself living in the 'Why Don't We' house with five boys. The oldest of them all might turn out to be her new knight in shining armor. STARTED - 12/10/19 FINISHED - TBD