Chief and Rockapella in “Unfinished Business”

This is Double Trouble.

(singing) Double Trouble (Trouble)

A double whammy like flim and flammy, they're always on the lammy. Their last known whereabouts: Budapest, Hungary. Buda and Pest, the two halves of Hungary's capital, are separated by the Danube River, and until the Chain Bridge went up in 1849, it wasn't easy getting across. Citizens walked the frozen Danube in winter, and used a floating bridge in summer. But after that first bridge was built, seven more followed finally linking all parts of the city. All eight bridges were destroyed in World War II, but then rebuilt and have kept Budapest connected ever since. Or they did until today...

(singing) Ooh!

...when Double Trouble buzzed Budapest in their stealth stealer. They swooped in low, grapple-grabber in tow, then the thieves stole all the links across the Danube. Now those loop-de-looping stooges want to open their own aerial stunt park. Gumshoes, bring in those bridge-boosting burglars and crack today's case...

(singing) Woo-woo-ooo-oo

...DANUBE-BEE-DOO-BEE-DUPED!