When the Hargreeves siblings reunite at the Academy after their father’s death, a mysterious wormhole crashes onto the rooftop—bringing back Five and the long-lost eighth sibling, Az. Together, they navigate the chaos of time, looming apocalypse warnings, and the complicated dynamics of their fractured family. Decades of survival have made Five and Az inseparable partners, their sharp wit and teasing banter hiding a slow-burning connection that refuses to stay hidden.