[ad#co-1] Beyond the wall, Bran Stark has been training with the Three-Eyed Raven, having last appeared in the season four finale episode “The Children“. According to an interview conducted with Isaac Hempstead Wright about Bran’s plot line in season six,

[ad#co-1] The Turtles return to save the city from a dangerous threat. The Turtles come into conflict with T.C.R.I. scientist Dr. Baxter Stockman, the Foot Clan and the return of their enemy, TheShredder, who has hired Stockman to create mutants