Three friends - Adam, Zygmunt and Jerzy - serve in the seaplane squadron of the Polish Navy in Gdynia. Years ago, Adam Halny fell in love with a young girl, not knowing that she was the fiancée of his friend from officer school, Zygmunt Zatorski. Loyalty then forced him to leave... Years later, they meet again. Ewa is already Zygmunt's wife, but Adam cannot forget her... While flying over the sea during a strong storm, the plane crashes and Adam and Zygmunt are in mortal danger. This dramatic situation not only allows them to survive, but also strengthens their friendship and removes all misunderstandings between them once and for all.