Franklin and Bear find a treasure map and ask their fathers to help them search for the treasure. Though everyone thinks they should turn back, Franklin urges them forward, finally finding the treasure.
Franklin is overly excited to lead the Nature Nuts in an Earth Day clean-up. As his team dwindles to one - himself - he realizes that his overzealousness isn't accomplishing anything.
Franklin decides to share his fort with Harriet and make some family memories of his own after witnessing his dad and Aunt T sharing fond childhood memories on a family fishing trip.