Algie tries his hand at mining under the tutelage of Big Jim but it is not long before Jim comes to rely on Algie as much as Algie does on him.

Pete is killed in a mining accident and Ella in an Indian attack, leaving their daughter Nellie in the care of Buck, who has never had any patience for children.

A man and a woman are captured by a mad scientist and kept like caged animals in his personal zoo in the jungle.

While out prospecting, Jim rescues a man dying of thirst and takes him back to his cabin, but Jim soon discovers that the stranger is out to steal his gold and his sweetheart.

Bob Canister strikes it rich in the Alaskan gold rush only to find himself plunged into a tumultuous battle with the claim-jumper Smacknamara.