"When a leading Soviet scientist is abducted to work on a top-secret project, he comes face-to-face with the Kremlin's new ultimate weapon-a Demogorgon! What his top-secret captors didn't count on was the resiliency of the doctor's children. While their father has been dragooned into weaponizing a monster brought back from the US, the two young teenagers are forced to embark on a harrowing and perilous journey to find him, with help from an unlikely ally: an old but extremely deadly retired KGB agent. Things are getting Stranger in Russia and all four of these characters will need to battle impossible odds in order to survive." -- Provided by publisher.