As Erin and Saxon begin their journey of discovery in Manitoba on Treaty 1 territory, they learn how the concept of surrender was buried in the crown's intentions. James McKay plays an important role, but his intentions remain a mystery.

Erin and Saxon visit Treaty 2 territory and find out how people were forcibly displaced from their homes in the creation of a national park. Attempts to seek justice reveal that Canadian law offers Indigenous people no protection.

In Treaty 3 territory, Erin and Saxon learn about the ongoing struggle to protect the water from contamination. They visit a blockade in Grassy Narrows, Ontario where a woman poisoned by mercury explains environmental racism.

Erin becomes a mother and visits her homelands on Treaty 4 territory in Saskatchewan. She and Saxon walk through the remains of a residential school and learn about the push to honour the memory of children's lives that were lost.

The buffalo nears extinction and plains people struggle to survive. A medicine chest clause is added to Treaty 6 to protect health. The Indian Act undermines any rights enshrined in treaties and James McKay's loyalties become clear.