Back from a whirlwind global concert tour, Kevin, Joe, Nick, and their ever-reliable security, Big Man, are dreaming of a relaxed summer getaway in a stunning Hollywood Hills rental house. The West Coast adventure kicks off with the arrival of Stella and Macy, who find themselves sharing a cozy guesthouse alongside Stella’s aunt Lisa. But the idyllic vacation takes unexpected turns, especially for Joe and Stella as their path to “Joella” hits some bumps. A movie opportunity throws Joe into a dynamic – and rumor-stirring – partnership with free-spirited actress Vanessa Page, fueling speculation of a budding romance dubbed "Jonessa." On set, Kevin finally gets the chance he's been waiting for: learning film directing under the notoriously demanding Mona Klein, navigating her sharp edges along the way. Meanwhile, Nick dives into writing fresh music and discovers an unexpected connection with Macy, prompting him to show there’s more to him than just rock star status.