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.

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.