Finn believes in science. He believes that science can explain everything, even the most mysterious phenomena. But now the boy is at a loss. His mother disappeared, and his grandmother said that she was stuck somewhere in the past... or in the future and needed to be pulled out of there. It turns out that all the women from Finn's family can travel through time. But Finn is a boy, and he doesn't have this ability. Therefore, my mother built a portal for him in advance - just in case. A completely unscientific situation. Or can the scientific method help cope with this paradox?