Charlie Chan at Treasure Island Reviews
There are not any really stand out characters or performances in this one. Jimmy, the number two son, does not have as much screen time in this one as other episodes. Because of that, there is not as much comic relief, therefore this one episode is more serious than others.
Overall it was well written and acted. I thought for sure I knew who it was, but was mistaken. The ending was a real surprise.
The disk had some interesting special features, It contained a look back at Treasure Island, the San Fransisco fair that took place in 1940 and the tie-in with this movie to the 1969 Zodiac killer, in real life.