Nagano/Toyama Trip That's on the Test (The Third Night)

It's the last day, and the group has gone all over Nagano to get this scoop. The group arrives at Togakushi, Nagano, where they try making fresh soba. They break into two teams: adults and children, and have a competition to make some soba! And finally, the group makes their last stop at a Ninja Trick Mansion, but what exactly awaits them there?