Travelogue of two film historians Nikolay Izvolov and Sergey Kapterev who visit world film archives around the globe in search of a lost sound version of one famous Soviet cartoon. It's "The Post" made by Mikhail Tsekhanovsky in 1929 and based on a poem by Samuil Marshak. At first "The Post" has been released in a silent form and later Tsekhanovsky remade it with experimental music and narration by Daniil Kharms. At that moment it was the first Soviet sound cartoon and it was a success all over the world. Russian film studies consider "The Post" to be of great importance and artistic value but unfortunately it's still lost. Only the silent version and the 1964 remake are still known and available.

Atlantic Ocean, off the coast of Iceland, July 9, 2016. The surprising discovery of a canister —containing four reels of The Village Detective (Деревенский детектив), a 1969 Soviet film—, caught in the nets of an Icelandic trawler, is the first step in a fascinating journey through the artistic life of film and stage actor Mikhail Ivanovich Zharov (1899-1981), icon and star of an entire era of Russian cinema.

Why are we still able, today, to view images that were captured over 125 years ago? As we enter the digital age, audiovisual heritage seems to be a sure and obvious fact. However, much of cinema and our filmed history has been lost forever. Archivists, technicians and filmmakers from different parts of the world explain what audiovisual preservation is and why it is necessary. The documentary is a tribute to all these professionals and their important work.