Hero is a female Sockeye Salmon named by Martin because she saved his life twice. She made her first appearance in Alaska: Hero's Journey. Martin promised to help her get home on the Salmon Run, with help from Chris Kratt. In the end she finally made it to the exact place where she was born to lay her eggs. She sadly died afterwords, due to the life cycle of the salmon. But her eggs, the next generation, were safe in the river. Martin named a hatching after her, Hero Jr.