Grimlock mad. Grimlock smash. Grimlock want Dinobots back. Grimlock nearly kill stupid Pretender Waverider for tedious flashback exposition. Meanwhile, Optimus Prime has become worried about the general mood of his soldiers aboard the Ark. Despite the loss of the Matrix, they are still not taking the threat of Unicron very seriously, falling into the groove of serious relaxation and downtime between missions. He begins to consider that the only way to defeat Unicron may be with the Autobots and Decepticons united as one.