Kayla Cooper is Abby's identical cousin, but KC's twin sister, when she gets sent on a mission on her own to a small town called Riverdale, where her mom just so happened to live as a kid, she has to help the core 4 deal with things such as the B.H, and a horrible game of G&G, but all while maintaining her cover, but that's gonna be hard, especially when she develops some feelings for Archie Andrews, but it's gonna take a lot more than a boyfriend to help her keep her cover.