Teenage mum Clara and her baby Clarita - who was kidnapped by a dominant male - arrive at Orangutan Jungle School. Meanwhile, the older orangutans are ready to be released into the wild.

The world's only reported albino orangutan arrives at Jungle School. Teenage mum Clara and baby Clarita face a return to island life. The staff decide that 'Big Boy' Beni needs to lose weight.

Vet Arga rescues an orphaned one-year-old orangutan with a broken wrist. Beni attempts the biggest banana heist in Jungle School's history. Five adult orangutans are finally released into the wild.

Watery fun and games with Valentino, Yutris and the rest of group two as they visit group three’s flooded classroom. It’s a huge day for the three quarantine infants as they finally get the results of their TB tests.

After their last night in the old baby house, the nursery school kids are in for a big surprise. It’s moving day!

Big boy Beni faces a day of reckoning as all the forest school students are held back for a weigh in. Alba is back in isolation after being diagnosed with typhoid.

It’s a busy day for the vets at Nyaru Menteng. Rescued orphan Josh needs his broken wrist examined, and Beni has a trip to the dentists to treat his bad breath.

Hormones flair among the older students as Darril and Syahrini get steamy in the tree tops and curious Cinta makes a watery discovery.

Bratty quarantine student Taymur has a breakthrough and begins to embrace his jungle school lessons, while serial truant Luthy ditches class again and gives the staff a run for their money.

Six jungle school graduates from the pre-release islands are finally set for release into the wild. It’s a mammoth journey by road and river into the heart of Borneo, where these special orangutans will finally be free

Moving day arrives for the nursery school kids; Beni gets a beating from a bully; the socialization cage has a new queen; dominant male Pujon is still on a time-out after attacking Alba, but he’s allowed a second chance to bond with his rival.

Albino orangutan Alba is released back into the wild, and one of the oldest orangutans in the centre is rushed into surgery with a life-threatening condition. Meanwhile, youngsters Beni and Lala finally return to class after an incident that left them with broken limbs, and Dilla unexpectedly gives birth during the night, but the delivery does not go to plan.

A timid orangutan stands up to a bully, sun bears prepare for release, and handlers use a secret trick to keep the orangutans in line: fruit kebabs.

At Nyaru Menteng, orangutans cover survival basics, including nest-building, foraging, and avoiding poisonous snakes.

Wine makes friends with a young macaque; A mother and son from a Thai circus live a new life on a pre-release island.

For weeks, Erik's been battling a head infection. Today he's feeling better and joins the group. At forest school, the students enjoy a poolside classroom where Valentino proves he's more than just a class clown.

Alejandra's view of the world has changed forever, following months of recovery. Can she overcome her new disability and learn to climb again?

Super-smart Tulia and Zalipa go missing from Palas Island, and the race is on to find them before they get into trouble. Meanwhile, everyone is on high alert when a flu virus threatens to sweep through Orangutan Jungle School.

At Jungle School the fate of several graduates hangs in the balance as the staff plans the next round of releases. After nine months, Dilla's moment to give birth arrives but things don't go according to plan and the new family's future is uncertain.

Everyone's on edge as the team makes the final attempt to reunite reluctant mother Dilla with her new baby, Delilah. Clara and Clarita are on their final journey to freedom when a dangerous flood stops them in their tracks and threatens everyone.

An inside look at the Nyaru Menteng Rescue Center in Borneo to explore how the orangutan school curriculum works, from nursery through graduation.