Thwart the White Rat's deadly plan.
Gregor and Luxa receive a coded message from the husslers - a desperate cry for help. The two are very worried and set out on a dangerous search to rescue the mice. On their way, they are threatened by belligerent giant scorpions and encounter the Curse, that white rat that Gregor once spared out of pity. It has grown into a power-mad leader and is pursuing a deadly plan with a whole army of angry rats ....