Thowra saves a young foal from drowning and meets the Brolga's daughter Boon Boon. The Mountain Men capture two horses from Thowra's herd.

Thowra, not taking the threat from the man too seriously, initiates a chase with the Man through the High Country. Arrow attempts to rescue the two young horses caught by the man previously but only ends up getting himself and his brother Storm captured as well. Thowra convinces Wombat and his family help in their rescue.

Benni and Silky say goodbye to Thowra as they head north for the winter. Thowra and Boon Boon come to the rescue of two children lost in the High Country.

Spring returns to the High Country bringing with it men intent on capturing the brumbies. The Brolga's herd escapes capture thanks to Boon Boon, Thowra and his brothers, Arrow and Storm. Boon Boon seeks her father's blessing to leave the herd and venture out on her own.

Two trappers arrive in the High Country and Thowra learns that not all humans are dangerous when the old prospector saves Benni's daughter when she gets caught in one of their traps baby.

Benni and Silky collect their daughter from the old prosector who has been taking care of her since her mishap. The Man returns to the High Country to capture Thowra and very nearly does. Benni gets help for the Old Prospector when he has an accident.

Currawong helps a cocksure young racehorse escape his paddock and venture up into the High Country to challenge Thowra to a race.

The Man brings a golden filly up into the High Country and when word gets around that she would like to live free with the other brumbies, Thowra and Storm help her escape.

The beautiful filly Golden joins Thowra's herd but has trouble adapting to life in the bush. The Man returns to the High Country to recapture Golden but his efforts are thwarted by Thowra.

The creatures of the High Country have a new problem to worry about when road crews arrive and begin digging up the land. In all the commotion, baby wombat is nearly run over by a bulldozer but Man realise he must learn to look after the creatures of the bush.

The trappers return to the High Country and are quick to cause trouble when their campfire gets out of control, becoming a raging bush fire. As the animals rush for safety, Thowra must rescue Arrow and the emus while the Brolga must save Aranda and the foals.

A dangerous new threat to the creatures of the High Country arrives in the form of a wild boar. A search is launched when one of the young dingos goes missing. Golden is injured in an attack by the boar and returns to the care of the Man. The animals unite to drive the boar out of the High Country.

An old mare arrives in the High Country looking for Thowra, whose legend has begun to spread. The Brolga, king of the wild horses, seeks out Thowra to settle his rumoured challenge for the kingdom.

Thowra helps Arrow escape from the Brolga after Arrow tries to get the fillies to join his herd. Thowra and Boon Boon find Yooralla, an orphaned brumby.

Thowra and Boon Boon teach Yooralla how to live in the high country. The Emus want to learn how to fly. Boon Boon is captured by a rancher and taken down to the plains.

Thowra tries to help Boon Boon escape from her enclosure but they're only successful when Charlie opens the gate to set her free. Tired from the escape, Thowra and Boon Boon get stranded on an island when they attempt to cross a river to safety. The next morning, a reluctant Arrow is made to play the role of hero when he rescues them. The emus visit their relatives on the plains and decide it's a nice place to visit.

While Thowra is looking for a secret hiding place where they can all go in times of danger, Mrs Dingo loses Warri, one of her pups. When they find him, they discover a secret valley hidden in the mist. As Thowra is being chased by The Man, Mopoke advises him to disappear like a ghost, so he heads for the secret valley and leaps over the edge, disappearing into the mist. The Man is certain he has leapt to his death rather than be captured. Boon Boon returns to be with her family.

Charlie ventures into the high country on his own to visit his grandfather but gets lost and becomes stranded when his horse runs off. Benni, Thowra and the emus help rescue Charlie when he gets stranded on a ledge.

Charlie and his grandfather help free Yooralla when he becomes lost in a storm and gets trapped under a fallen tree. Thowra challenges the Brolga to keep him from adding Yooralla to his herd.

Arrow takes pride in being the first to announce the return of the trappers to the high country. Currawong and Mopoke get caught in one of the traps but Arrow can't free them and the Brolga refuses to help. They finally gain their freedom when the Man stops his chase of Arrow and Thowra to release them from their cage.

The creatures of the high country band together to drive out the trappers.

Baby Wombat is hit by the trappers' truck as they leave the high country. Yooralla helps Charlie take him to Charlie's grandfather where he can be looked after until he recovers from the accident. The trappers ute sinks when they stop to do some fishing.

After retrieving Baby Wombat from Charlie and his grandfather, Wombat decides to take his family on a trip to see their cousins up north. A lost fillie arrives in the high country in search of her long-lost brother. Wombat saves Thowra from the Brolga.

The Brolga chases Arrow away from his daughters again. Yooralla is reunited with his sister, Goonda. Yooralla is destined to lead his father's herd but will be allowed to stay in the high country for now. The Brolga gives chase to Yooralla and Goonda, who manage to escape when Arrow crashes into the Brolga. Goonda prepares to go back home and Arrow may be going with her.

Arrow seeks advice on whether to go south with Goonda. Goonda heads home after saying goodbye to Thowra and Boon Boon, and Arrow, who overslept, must chase after her to catch up. The Man follows Yooralla to Goonda and pursues them, nearly catching Arrow. Afterwards, Goonda invites Arrow to accompany her on her trip home.