Board Thread:General Discussion/@comment-11469381-20140205025250/@comment-24204226-20140706035101

It seems like they're both doing their own thing right now. I think they will only call on each other when things get out of hand. Sure, the Turtles have stopped the Kraang from taking over the world, but it wasn't without its casualties, or near casualties, if you may. Leo nearly died twice trying to defeat the Kraang. Also, Shredder is still able to defeat the Turtles when they attempt to fight him. So I think that only when the Turtles are able to be a bit more consistent in their foiling of Shredder's and Kraang's plans, will Shredder and Kraang team up more frequently.