The adventure action film centers on a famous extreme sports blogger who, having arrived in Cuba, finds herself involved in the mysterious story of a document that disappeared many years ago, according to which America was supposed to return the Guantanamo base to Cuba. Both the special services and a serious businessman have been hunting for it for a long time. However, only her grandfather, former intelligence officer Lev Voronov, a retired KGB general, with whom she does not communicate, knows where this document is. In parallel with the action in our time, the film will also tell about the adventures of Voronov shortly before the Cuban Revolution in 1958.