Hold Up centers on Marcus, a young teen accompanying his older brother on a drug deal. Eager to prove he's cool enough to hang, Marcus bets he can rob the liquor store they sit parked in front of in exchange for an invite to an exclusive party later that night. Once inside the store, Marcus discovers his classmate, Jenny, not only works there, but witnessed and filmed his attempt at shoplifting. Marcus tries to escape, only to run headfirst into a real robbery, which quickly devolves into a series of absurd events that will force Marcus to grow up in more ways than he could ever imagine.