The Irwins travel to South Africa, where 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 game animals.

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.

After months of croc wrangling training with Steve Irwin's best friend Wes, Robert, Steve's son, takes the final step in his journey to feed Graham, a huge crocodile at the zoo's famous Crocoseum.

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 reunites with her grandmother; Grub the wild echidna is released from the Zoo's Wildlife Hospital.

The Australia Zoo's alligator snapping turtles need a health check, and it's Robert's job to protect from their fierce bites; Terri and Bindi welcome seven new lemurs from the United States; the Rescue Unit must save possums caught in a chimney.

Bindi and the keepers ready Sophie the Baby Giraffe for her first steps into her enclosure; Robert helps to hand-raise Melman the Kangaroo; Terri oversees a health check for Ravi the Red Panda.

Hunter the Sumatran tiger is blind and must be sedated for his annual eye check; the keepers prepare young giraffe Scarlett for a road trip to South Australia, reuniting her with family.

Robert wrangles Utah, a 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 that has been in the Irwins' care for 26 years.

Rosie the giraffe is ready to give birth; Robert has a bloody encounter with a wild python that has entered an enclosure; Terri helps the keepers wrangle Chief the Tasmanian devil.

Terri welcomes Mballa, a new cheetah cub from South Africa, to the Australia Zoo family; 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 crocodiles Terra and Bosco in a nerve-wracking but necessary venture; Bindi tends to the training of otters Percival and Daisy; Terri makes a zoo volunteer's dream come true.

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

A look into life at Australia Zoo during the 2020 Coronavirus (Covid-19) pandemic. Bindi and Chandler adjust to living together and Terri struggles to find money to feed the animals.

Robert travels to Australia's Great Barrier Reef to help conduct research on manta ray; the Zoo's Rescue Unit, Wildlife Hospital and Volunteers team up to save a baby wallaby struggling to survive.

Robert gets in the water with Gloria, a 12-foot reticulated python, to swim alongside her for the first time in the Crocoseum. Bindi welcomes home two orphaned kangaroo joeys, while Terri helps release a rescued wedge-tailed eagle back into the wild.

Carrying three baby kangaroos and an emu, the Irwins caravan into the Australian Outback to release the animals on Mourachan, their giant wildlife conservation property. Plans shift when they discover more animals in need of rescue along the way.

Terri helps prepare the zoo's new baby rhino to receive a lifesaving vaccine. Robert is on a rescue mission to save two black swans in very bad shape. Bindi tries to determine if a cranky wombat named Poa might be pregnant.

Terri returns to her hometown in Oregon to help Brady, a cougar in need of a vital health check. At the zoo, Robert is on a mission to rescue Oscar, a small bird with a big attitude, and Bindi bathes an echidna with bad skin allergies.

Bindi and Chandler prepare for the happiest day of their lives. Weeks before their wedding day, the coronavirus pandemic causes them to make difficult and drastic changes to the wedding of their dreams, but in the end love prevails.

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.

Robert wrangles Western Diamondback rattlesnakes in Arizona for the first time, learning techniques passed down by his dad. Terri helps save some of the hospital's tiniest patients: three baby feathertail gliders. Bindi chats with Occa the cockatoo.

Robert takes on the challenging task of relocating Bosco, the most aggressive croc at the zoo. Bindi must investigate Forest the giraffe's bad knee problem. Terri helps Harley the koala find love at the end of a difficult breeding season.

Robert feeds 44 hungry alligators, all at the same time. Terri helps examine Kaitlyn the tiger and makes a thrilling discovery, while Bindi follows the heartbreaking story of her old friend, Zambezi the zebra.

As Bindi celebrates her 21st birthday, she gets a surprise proposal from her boyfriend, Chandler. Meanwhile, things get dangerous as Robert wrangles gators in thick mud. Terri helps with the momentous birth of a baby white rhino.

Robert and Terri take to the skies to release three rescued sea turtles near the Great Barrier Reef. Bindi anxiously awaits the birth of the zoo's first tiger cub in years. Richie helps a baby wallaby in his struggle for survival.