Dalton Brothers the promise

With the loss of their parents in a tragic mountaineering accident in South America, the Dalton brothers are faced with a decision to make that will forever change their lives. The must decide wheather they want to keep a promise they made to their late sister and climb the seven summits of the world and travel around the world from pole to pole. This promise will forever change their lives and will challenge them more than anything they have ever done before. With the hope and dream of keeping their promise and the excitment of climbing Denali the tallest mountain in North America the Dalton Brothers head on their journey worried that they might not come back alive, but if they do they will have achieved something that no brothers have ever done before.