The film tells about the construction of the 5th stage of the Iriklinskaya GRES in the Orenburg region, about the masters of their craft: Viktor Semenovich Vinogradov, the head of the best brigade of the USSR Ministry of Energy and Electrification, about the young foreman of climbers-climbers Alexander [Yanakh], about the chief construction engineer Anatoly Ivanovich Brussetsky , about the foreman Alexander Galushko, about the foreman of the finishers Nina Mikhailovna Rebrova, about the foreman of the turbine operators Vyacheslav Ivanovich Zinkov and the head of construction Alexander Mikhailovich Poddubsky.