Chief and Rockapella in “Unfinished Business”

This is Wonder Rat.

(singing) Wonder Rat

A case concede cerr who carts off contraband for Carmen Sandiego. His last known whereabouts: the Black Hills, South Dakota. When sculptor Korczak Ziolkowski died in 1982, he left behind a literal mountain of unfinished work. Namely, a mammoth monument called the Crazy Horse Memorial. Since 1947, Korczak had been transforming an entire mountain into the image of the Oglala Sioux chief Crazy Horse. The sculpture was creating the memorial to honor the heritage of Native Americans. Today, work continues on the unfinished Crazy Horse. Korczak's wife and children have vowed to fulfill his dreams. But today, that dream became a nightmare. Wonder Rat's monumental ego got the better of him. The repugnant rodent stole the statue and choppered it off. Soon, it will be his mug on the memorial pointing the path to mountainous mayhem. Gumshoes, get that rat off his high horse and solve today's case...

(singing) Woo-woo-ooo-oo

...THIEF CHISELS CHIEF!