Jack and Colton are back in Minnesota and embark on a 2 day adventure in the Mississippi National River and Recreation Area: a 72-mile river park that runs along the Mississippi from north Minneapolis, through the Twin Cities, and then through St. Paul, MN. FYI - the Mississippi is the 2nd longest river in America. It starts as a small stream 200 miles northwest of Minneapolis and it takes 90 days for the water to make it down to the Gulf of Mexico. The guys end their trip by teaming up with Caleb Smith - a 15 year old entrepreneur paying mortgage on a private island in the Mississippi: Peacebunny Island.