A film about the celebration of the 50th anniversary of Soviet Azerbaijan. G. A. Aliev opens a hydroelectric complex; arrival of delegates for the celebration, among them: P. Ye. Shelest, Mamerov, V. P. Mzhavanadze, Sh. R. Rashidov, D. A. Kunaev, L. I. Brezhnev. LI Brezhnev gets acquainted with the sights of Baku; Brezhnev, Aliyev among the oil workers on the overpass. Ceremonial meeting dedicated to the 50th anniversary; speakers: G. A. Aliev, L. I. Brezhnev. LI Brezhnev pin the Order of the October Revolution to the banner of the republic; speaking delegates: A. Shkolnikov, P. Ye. Shelest, N. N. Romanov, Sh. R. Rashidov and others. Military parade on the Lenin Square. Physical culture parade, a theatrical performance on the square, a demonstration of workers in Baku. L. I. Brezhnev, G. A. Aliev, guests are passing on the streets of Baku; seeing off guests at the airport.