Watch Ninja Operation 6: Champion on Fire (1987) Official Trailer

"A hostile warrior just released from prison is hell bent on killing the missionary priest who put him behind bars. He is relentless in his pursuit of the good priest. Meanwhile, the priest teams up with another pure spirited Ninja while on a mission to capture the leader of a gang of thieves terrorizing the local area. This duo is determined to rid the northern continent of all evil Ninja Warriors. The fighting is ferocious as the priest is killed, causing his brother to enter the scene to avenge his death. Both the opposing forces do battle to the grueling end!" - VHS Back of the box description Hong Kong cut and paste edit of the 1974 Taiwanese film "大地龍種 " (Fury in Storm) with new ninja scenes.