A stranger stalks Rocket as he he continues his quest to try to fix his past..um, bad calls, but he just might cause a cosmic calamity on the dreaded Winter Planet! Then, what happens when you water Groot a little too much? GROOTZILLA! He's faster than a speeding Rocket, more powerful than Drax the Destroyer, able to eat tall buildings in a single gulp - and he's not happy! And Rocket's skills will be put to the ultimate test as he challenges everything he's known about himself. Does the Book of Half-World -- the mythical text of Rocket's early adventures -- actually exist, or was it all a big hoax? Is Rocket really the last of his kind? Find out once and for all, right here!