Twinsanity Dragons: Riders of Berk : Season 1 Episode 15
TV-Y7 (Universal Kids) Cartoon Network 22m int(0)
Aired: February 13th, 2013 @ 2:00 AM EST on Cartoon Network
Dagur the Deranged visits Berk to renew a peace treaty between the Berserkers and Berk, and the dragons are put into hiding to dispel rumours that Berk is training a dragon army. But when Ruffnut and Tuffnut begin to fight, their dragon, Barf and Belch, is left out of control. The Viking youths must bring the twins back together to control their dragon and avoid provoking Dagur to war.