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Where is airing: CBBC
How many episodes in 1 season: 3 episodes
George Barnard's life is turned upside down when she and her cousins embark on a treasure hunt. Soon they find themselves battling a merciless enemy who wants to change the world.
A cross-country thriller involving Quentin's invention of a state-of-the-art proto-computer dubbed 'the Algebra Engine'. With war on the horizon, the contraption is critical for the country's counter intelligence efforts and it's a race against time to prevent the machine falling into enemy hands.