It's seven years since Jurgen arrived at the zoo and each year he celebrates his anniversary, or 'zooniversary', by putting on a show, whether the zoo animals like it or not. This year he is planning a live music concert - the bunting is up, the fireworks are ready and Dave has been practicing his guitar riffs. But in a strange coincidence, Jurgen discovers that he shares his zooniversary with Carl the chameleon, who prefers a much quieter party to remember his arrival. Will either get the celebration they hope for?

With the narrator held up with car trouble, gorillas Dave and Geoffrey take over camera and interview duties with Jurgen. But as he attempts to present himself in the best light, Geoffrey and Dave have other ideas about his most entertaining moments - from being terrified of squirrels, suffering from make-believe illnesses and thinking he can 'talk human' with keepers.

A countdown of the top 10 clips from across series selected by the narrator and unenthusiastically assisted by Woody the baboon. Highlights include Geoffrey the gorilla's 'nose-flute' masterpiece, birthday cakes accidently being eaten and rapping reptiles, until Woody turns the tables on the narrator to include his 'best bits' or mishaps - from walking into doorframes to being startled by surprise lion roars.