Dragons: Riders of Berk Season 6 Episode 2 - Gruff Around the Edges Episode Title:Gruff Around the Edges.Episode Description:The twins' world travelling cousin Gruffnut comes to the Edge to pay a visit and Tuffnut is overjoyed to see his longtime hero. Ruffnut, however, is suspicious of Gruffnut's intentions, especially when he tries to fly off with each of the riders' dragons. Gruffnut is revealed to owe money to the Hunters and promised one of the riders' dragons to pay off his debt. When Tuffnut learns of the deception, Gruffnut takes his place and tries to secretly bring Barf and Belch to the Hunters, but Ruffnut recognizes him and Tuffnut defeats him in battle. They rescue Gruffnut anyway due to his being "family," and leaves him in a Quaken's cave where he can have "a real adventure."