The first of the many serials based on the Zorro character released by Republic during the 30s and 40s.

In this one John Carroll (before going on to bigger and better things) plays the hero and his mild-mannered alter ego James Vega. Noah Beery Sr. is wasted as the Marsden, the head bad guy trying to take over the California/Yukatan Railroad. He basically never leaves his office and only appears to radio instructions to his henchman led by Richard Alexander and Robert Kortman.

As usual in Republic serials, the stunt work in this one is great. Yakima Canutt visibly doubles the hero and performs some dangerous horse to train transfers among others.

All in all it isn't bad. The only problem I had with it was the inclusion of a couple of songs for Zorro to warble as he galloped across the range. A tip of the hat to the singing cowboys of the day, I suppose.