Big hero 6: the broken promise (hirogo)

(Takes place two years after big hero 6 the series) It's been two years since the defeat of Yokai and hiro has grown to have feelings for none other then Gogo Tomago, but after hiro gets attacked and Tadashi is found alive, a plain to destroy big hero 6 begens to develop. can Hiro save gogo and his friends or will he him self become their biggest enemy.