Crikey! It's the Irwins

After months of training, Robert steps into his father's shoes to feed Graham - Australia Zoo's most notorious crocodile - solo, in front of the entire Crocoseum! Bindi witnesses one of nature's rarest events: Cedar the Koala giving birth to twins!

It's a big day for Hunter the Sumatran Tiger. He is blind and must be sedated for his annual eye check, so Terri can get closer than usual. The keepers prepare the young giraffe Scarlett for a road trip to South Australia, reuniting her with family.

The family prepares Croc One, Steve Irwin's research ship, for a mission to release an endangered sea turtle back to the wild. Scarlett the Giraffe is reunited with her grandmother, and Grub the wild Echidna is released from the hospital.

Robert follows in Steve's steps wrangling Utah, a highly venomous 12-foot King Cobra. Dr. Amber visits Tandora to care for wild koalas. Back at the Zoo, an old injury flares up for Bruce the Brolga, a bird who's been in the Irwin's care for 26 years.

The Australia Zoo's Alligator Snapping Turtles need a health check. Terri and Bindi welcome seven new lemurs from the US. The Zoo's Rescue Unit is called to save possums caught in a chimney.

Following Steve's dream of global conservation, the Irwins travel to South Africa. Terri helps release a wild leopard, Bindi learns from the all-female anti-poaching squad The Black Mambas, and Robert attempts to photograph Africa's "Big Five".

It's all hands on deck in the Australia Zoo's Mammal Department. Rosie the Giraffe is ready to give birth! Robert has a bloody encounter with a wild python that's entered an enclosure, and Terri helps the keepers wrangle Chief the Tasmanian Devil.

While Bindi and the keepers ready Sophie the baby giraffe for her first steps into her enclosure, Robert helps to hand-raise another baby: Melman the Kangaroo. Terri oversees a health check for one of the Zoo's favorites, Ravi the Red Panda.

Terri welcomes Mballa, a new cheetah cub from South Africa, to the Australia Zoo family. Meanwhile, Robert sets out to save a stranded platypus and Bindi prepares to meet Bert the Koala Joey as he emerges from his mother's pouch for the first time.

Wes and Robert remove eggs from the nest of saltwater crocs Terra and Bosco, in a nerve-wracking but necessary venture. Bindi tends to the training of otters Percival and Daisy, and Terri makes a Zoo Volunteer's dream come true.

Robert travels to Australia's Great Barrier Reef to help conduct research on manta rays. The Zoo's Rescue Unit, Wildlife Hospital and Volunteers team up to save a baby wallaby struggling to survive. Bindi gets up close with Archie the Dingo.

Terri attends the exam of Charlie the tiger to determine if his tumors were successfully treated; Bindi and the Small Mammal Team help develop a vaccine for Eden the Tasmanian devil; Robert discovers the true genders of the zoo's shingleback lizards.

Terri helps determine if Caballe the rhino is pregnant, while Robert hopes to get the zoo's Aldabra giant tortoises to mate.

The family makes the annual trip to the Steve Irwin Wildlife Reserve to capture, study and release wild crocodiles, a mission started by Steve and Terri that provides research vital to the protection of Australia's apex predators.