Watch full Hero: 108 Season 2 Episode 37 full HD online. Cartoon video Hero: 108 Episode 89 online for free in HD. The Dark Below. Twin Masters hires the Oyster-Rahmas to widen a trench at the bottom of the ocean in an attempt to drain Hidden Kingdom’s oceans. Upon enlisting Lantern Fish King’s help, First Squad, Commander ApeTrully, the Sailor Brothers, Sammo the Whale, and Lady Green go underwater to stop Twin Masters.