6.8 Kung Fu Panda: Secrets of the Masters (2011) Dec. 12, 2011 Kung Fu Panda: Secrets of the Masters (2011) IMDb: 6.8 2011 24 min 32 views Po and the Furious Five uncover the legend of three of kung fu’s greatest heroes: Master Thundering Rhino, Master Storming Ox, and Master Croc.