Chief and Rockapella in “Unfinished Business”

And this is Wonder Rat, Carmen's rabble-rousing rodent.

(singing) Wonder Rat

His last known whereabouts: La Cuidad de Mèxico. On a quiet corner in the Coyoacan section of Mexico City stands a bright blue house, the home were Frida Kahlo was born. Some critics call her one of this century's greatest painters. The house is now the Frida Kahlo museum where you'll find the largest collection of her work, mostly stunning self-portraits that reflect her troubles and her intense pride and nationality and family. But today, Wonder Rat crept into Coyoacan and hatched an evil plan. With the help of a cheesy beast of burden, he hitched up the museum and hauled it off. He plans to use it to showcase his own cheesy self-portrait. Gumshoes, here's today's case.

(singing) Woo-woo-ooo-oo

NOW MUSEUM, NOW YOU DON'T!