AllMovie

Hard Rock Harrigan is an easygoing George O'Brien actioner with emphasis on comedy and romance. The plot revolves around a rivalry between sand-hog "Hard Rock" Harrigan (O'Brien) and his foreman Black Jack Riley (played by O'Brien's frequent screen sparring partner, Fred Kohler Sr.) At the center of their conflict is their mutual affection for heroine "Andy" Anderson (Irene Hervey). But when the chips are down and Riley is trapped in a tunnel cave-in, it is Harrigan who comes to the rescue. George O'Brien's films could never be accused of being High Art, but they sure delivered what his fans wanted.