Power Players. Meet the zoo's powerful animals as Sonika the Asiatic lioness gets a grip in a tug-of-war and Tyler takes on Marion the sulcata tortoise in a contest of strength. [S]
Perfect Dens. The brothers learn all about different types of cosy animal dens. Bird expert Nadeem helps Cam build a bird box, and Aaron reveals why the Asiatic lion is most endangered. [S]
Shy Guys. The One Zoo Three brothers meet the zoo's shyest animals as Cam is challenged to a game of spot the reptile, and Tyler tries to tempt Rambutan the binturong onto his new platform. [S]
Big Steps. Trying to solve the case of the mystery footprints, the brothers look at the animals' feet. Could it be the penguin chicks, the snow leopard cubs, or something far more peculiar? [S]
Squeaky Clean. While the brothers are making sure all the habitats are squeaky clean, they discover how much they can learn from the animals themselves, as they are nature's best clean-up crew. [S]
The Birthday. It's a day of new arrivals as one of the pygmy marmosets gives birth and the penguins lay eggs. It's also Tilly the red panda's birthday. Also in HD. [S]
The Reopening. The zoo has its grand reopening to the public and the brothers recall the incredible story of how their family zoo came to be. Also in HD. [S]
The Tigers. The brothers celebrate the opening of their biggest and best enclosure yet, a huge new home for Siberia and Aleena the Amur tigers. Also in HD. [S]