Three children from an ordinary Moscow family—a fifteen-year-old robotics fan, a twelve-year-old blogger, and a seven-year-old animal-obsessed girl—suddenly discover that their father is not an engineer at all, but a genuine secret agent. The entire family embarks on a life-threatening journey from Moscow to Siberia, to a research base hidden in the taiga wilderness, where an incredibly powerful, previously unknown energy has been discovered. The children must unravel the mystery of this extraordinary energy, linked to Russia's historical artifacts, and protect it from the advances of a powerful corporation seeking to exploit it for its own gain.

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