Cameras return to the Zoological Society of London for the second outing. With limited space at the iconic London site, keepers constantly have to move animals around. Among the most popular animals are the playful Californian sea lions. However, their pool is being refurbished, forcing them and their keeper Alex to move temporarily and preventing Alex from teaching her charges new tricks. In the mammals department, monkey keeper Andrea is surprised to discover a newborn baby in the colobus enclosure. Elsewhere, butterfly keeper Mark is helping rare species hatch, bird keeper Adrian tries to rein in his naughtiest penguin, and reptile keeper Ian welcomes back Tank, the giant Aldabran tortoise who is ZSL's oldest animal
