Maksim is so busy at work, trying to do everything and not let his boss down, that he does not notice the most important things in his life. On the anniversary of meeting his beloved girl Sasha, after an accidental quarrel with an unusual taxi driver Tamara Petrovna, completely inexplicable events begin to happen to Maksim - he will have to live his life on rewind.
Durante a Primeira Guerra Mundial, um jovem soldado com sonhos de glória mergulha no desconhecido e perde a visão durante a sua primeira batalha. A partir daí, a sua nova missão é interceptar aviões inimigos sondando o céu com dispositivos acústicos gigantescos.