In 2022, 18-year-old Dima, an ordinary guy from Donetsk, whose life revolved around rap and dreams of fame, is facing a severe test. The news that his mother ended up in besieged Mariupol and stopped contacting him forces him to leave music and join the assault squad as a volunteer to save her. In a war-torn city, he ends up in a Bug unit, which gives the recruit the call sign Kid. Experiencing all the horrors of a military conflict, an infantile teenager undergoes profound internal changes, rapidly turning into a mature and courageous warrior.