I am rapidly coming to the conclusion that being a friend of "Charlie Chan" is a downright dangerous thing to be! This time, his pal "Maj. Kent" (George Irving) is accompanying his celebrated horse "Avalanche" to Los Angeles to race it in the famous "Santa Juanita" handicap when he is discovered in it's stall, having been kicked to death! Charlie and No. 1 son "Lee" (Keye Luke) must get to the bottom of this sinister conspiracy and soon discover that maybe the horse wasn't to blame after all.. This feature had a really good dynamic between father and son; more for Luke to work with here on both the comic and practical fronts and it's got quite a few plausible suspects as the mystery unfolds. Some nice equestrian footage and a lively supporting cast make for superior effort from all concerned.