In the second season of Spy Classroom, the Lamplight spy team from Din Republic faces a challenging mission to apprehend an enemy spy. Despite their conflicting personalities, Thea, Monika, Erna, and Annett manage to achieve their goal. During a brief respite, they encounter a woman named Matilda who claims to be Annett's mother, leading them into a complex conflict that strains their unity. Meanwhile, Klaus and Lily, the remaining members of Lamplight, grow concerned when the dispatched squad fails to check in. In a race against time, they venture out to uncover unsettling truths about the region and reunite with their missing comrades before it's too late.