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Season 1 - Dec. 23, 2016
Season 2 - Dec. 15, 2017
Season 3 - May. 25, 2018

Trollhunters: Tales of Arcadia Season 1 Episode 13
HD
Overview:
Two fateful battles unfold when Bular and Strickler order Jim to unlock the portal and free Gunmar and his Gumm-Gumm Army from the Darklands.
Serie name Trollhunters: Tales of Arcadia
Episode name: The Battle of Two Bridges
Air Date: 2016-12-23