Three adults from modern Russia, accidentally falling under the temporal ray of a time machine, find themselves abandoned in the USSR in their own fourteen-year-old bodies. How to find someone who sent them to 1977 and could return them back to the future? The Trinity undertakes an investigation, during which they face numerous mysteries and dangerous obstacles. Proven friends, new acquaintances, as well as suspicious personalities and even the omnipotent KGB help them. But so much will happen over the years of waiting... Will they be able to come back and want to?