The small-time Chesterfield company attempted to promote canine performer Sandow as a competitor to Warner Bros.' phenomenally successful German shepherd Rin-Tin-Tin. Although clever enough, Sandow, like such other Rinty imitators as Bullet, Muro, Ranger and Rex, didn't quite measure up, and his films played mostly minor houses. In Avenging Fangs, the pooch comes to the aid of young Kenneth McDonald, whose father has been killed by a gang of thieves. ~ Hans J. Wollstein, Rovi