End of the 30th century. Earth. The future has brought a lot of good and bad. Technologies have advanced, people's capabilities have developed, but the ecology of the planet has been destroyed. A young scientist, A. S. Karlan, works at the Klionis Institute of Time, recording and preserving the most important events taking place in the City. Every night he has strange dreams about mysterious people who are reshaping the history of his planet. Obeying the call of his dreams and shocked by the unexpected discovery of the archaeologist girl Isalinda Garon, he sets off on a journey to the lower quarters of the City. Along the way, he reveals the true reasons for what happened to the Earth and reaches the Energy Heart of the planet - the Temple, where he can finally find answers.