Having learned that not far from the children's camp, somewhere in the forest there is a lake shrouded in legends and secrets, Alena and her friends go to look at it. She accidentally falls into the water, and upon emerging, she realizes that she is in a different time. This short journey makes her take a different look at her life, at the values that really need to be protected at all times: friendship, loyalty, love of her parents, devotion to her homeland. And also - what a complex world surrounds us.