Millions of years ago huge forces ripped apart the Earth’s crust creating seven spectacular continents. Over time, each continent developed its own remarkable wildlife.

From the depths of the South American jungles to the frozen peaks of Asia, and from the cities of Europe to the vast plains of Africa - Seven Worlds, One Planet features extraordinary animal behaviour and untold wildlife stories from each continent. We discover how our seven worlds gave rise to the great diversity of life on Earth today, and reveal the challenges now faced by animals in a world shaped by us.

Season 12 of HEARTLAND sees the Bartlett-Fleming clan dealing with day-to-day challenges and pursuing forgotten dreams. Their strength will be tested as they face personal struggles and must look to one another for guidance and support.

Amy and Ty are trying to balance life with a toddler and their perpetually busy schedules. Realising their long-time goal of working together turns out to be the solution. But when a newcomer unexpectedly arrives at Heartland, Amy and Ty are confronted with an impossible choice that could change their family forever.

Meanwhile, Georgie enlists a new coach and faces immense pressure to reach the next level, causing her to make challenging sacrifices. In order to support her daughter, Lou is spurred into making a decision about her expanding business in NYC. But when she discovers an old flame has moved on, she may live to regret her choice.

At the same time, Jack and Lisa confront problems in their relationship when Lisa is faced with a troubling family situation. In the meantime, Tim makes drastic life changes leading to a further rift between him and Jack.