Bob and his team are off to Spring City Zoo for some fun new construction projects! They build Bella the elephant an exciting new home, while Scoop secretly brings Pilchard to the zoo, causing trouble within the bear enclosure. Dizzy gets over-excited building a butterfly house, and Lofty proves his love of giraffes. Muck discovers Komodo Dragons aren't scary after all, but will Leo overcome his fear of sharks? Follow Bob and his friends on this big zoo-building adventure!