AllMovie

The victim of an express office hold-up, a young boy (Bobby Nelson) is saved by yet another Rin Tin Tin wannabe in this incredibly cheap little action-thriller. Having lost not only his father, but also his pet dog in the express office carnage, Bobby is befriended by prospector Jack Hall (Kane Richmond) and his police dog, Thunderbolt (Lobo). The latter comes to the rescue when Bobby finds himself trapped in a burning cabin with the very same murderous outlaws (Hank Bell and Barney Furey) who killed his father. Thunderbolt was produced by Sherman Krellberg, a Poverty Row veteran best remembered for co-financing the cult classic White Zombie (1934).