Alison visits Twycross Zoo to collect an orphaned orangutan in need of a new home, plus there is some startling news about a capuchin recently rescued from a life in the pet trade.
Woolly monkey Piquita requires an operation, new capuchin Louis gets a lovely perch, while the chimp team find themselves trying to navigate a double blow after two sad losses.
Alison finds herself on a mission to rescue a marmoset that is being kept in a hamster cage, and chimp Kangoo takes his time deciding whether to venture into the outdoor enclosure.
Orangutan Silvestre arrives in Switzerland to be the leader of a small group, and Alison decides the best option is to separate Sasha and Kangoo so they can have a chance at a fulfilled life.
There's big news for one of the chimp groups, and rescued marmoset Jangles summons up the courage to join her new mate Reggie in the outside enclosure.
Capuchin Matty needs a visit from the vet after fighting leader Erico for the top spot, and the birth of a baby woolly monkey is captured on camera.
As Alison collects a female marmoset whose owner has died, the squirrel monkeys try a new puzzle and Xingu's baby ventures outside for the first time.
Alison and the team welcome a new female loris to the park, and there's another tiny new addition at the woolly monkey house.
Alison takes action to protect the park after learning that COVID-19 can also affect apes. Chimp Gypsy's condition worsens and a little woolly bonds with his dad.
A video of a sick male marmoset results in an urgent rescue mission. It may be too late to save the male, but there's hope yet for a female at the same address.
Woolly monkey Oriana's health check causes concern, the chimps have a bust-up and the guenon family try out a new tree in their enclosure.
A huge storm pummels the park leaving a trail of destruction in its wake, and there's friction at Stumpie House as Toto and Freddie fight for the top spot.
Top male Paulo protests a woolly weigh in, the siamang gibbons have a new experience and the capuchins use some clever tricks to track down some tasty treats.
A health check for newly rescued tamarin Red raises alarm, newcomer capuchin Matty squares up to dominant male Erico and the chimps get a tasty treat.
Chimp Gypsy is very unwell, Dodger the capuchin meets some new ladies and chimp Bart has eyes for just one thing.
Alison receives footage of a pet Tamarin monkey in need of a home, Bruce the loris gets a check-up and golden-cheeked gibbons Kim and Tien get cosy.
Capuchin Louis makes the most out of being let outside for the first time - playing a game of hide and sneak with Donna. Slow loris Bruce gets botox.
Alison's on a mission to collect a marmoset found climbing scaffolding on a large block of flats.
Alison collects a squirrel monkey that needs a new home. Also, baby woolly Cosmo must summon up the courage to take on the great outdoors.
Bruce the loris is in hospital for a check-up while the team have to make a tough decision about the future of capuchin Tau.