Scooby-Doo, Shaggy and the rest of the Mystery Inc. gang embark on an international treasure hunt in an attempt to claim the legendary Sword of Fate -- a blade said to possess magical powers. To get to the sword, though, Scooby and Shaggy will have to get past the Black Samurai and his robot ninja army. Not to worry: A sword master has trained the less-than-dynamic duo in the ancient martial art of bushido in this goofy animated feature.