7 grand masters was released in theaters on March 21 1977 directed by Joseph kuo who also played in slot of them

Sang Kuan Chun is an old kung fu master who is getting ready to retire from martial arts. But just as he is about to put up the kings signboard and call it quits, he receives a note alleging that he's not the best. Thus begins his journey for one last challenge with each of the Seven Grandmasters to prove his superiority. As Sang Kuan Chun and his three students travel from one challenge to the next, the foursome acquires a fifth—a young man named Siu Ying who wants desperately to train under master Sang Kuan Chun to avenge his father's death. So he tags along, despite the master's insistence that he will not accept any more students. Eventually we learn more about the master's past.