Lviv heat melts asphalt. They are almost eighteen, and everyone has something to hide.

Five boys challenge the city's skyscrapers and themselves every day. Parkour is a way of life, their challenge is always to do impossible. After all, when you are a tracer, there are no limits: there are only obstacles.

Mysterious stranger Tasha - a new friend or another test? Will they be able to resist danger and overcome their own fears? It will be difficult for them without a team, but together they are always stronger, together they are a "Flock".