It's the Zoo's annual inspection day, and this year it's serious. With the threat of closure looming for any enclosure that isn't up to scratch, all of the Zoo's animals scrub up to look their best and impress; the penguins are polished, the baboons are buffed and the tigers are tidied as the Zoo Inspector does his rounds and scores their presentation.

Everything is looking good until evil genius monkey Brutus hatches an explosive plan to sabotage the inspection - and get Jürgen kicked out of the zoo forever.