Global panic ensues when it is revealed that a mysterious UFO is actually a giant turkey-like bird that flies at supersonic speed and has no regard for life or architecture.
In a 16th century kingdom in the Netherlands, the newly crowned King Stephan concludes a secret treaty with the Spanish. This puts him at odds with his younger brother, Prince Roland, who favors a treaty with the French. Stephan orders Roland imprisoned but Roland escapes and leads a revolt.