Manunitus Sourpuss is a courageous gladiator who is about to fight one of the most feared foes the city has ever encountered. The Welsh giants have moved in But after a number of attempts with his trusty crossbow, he fails to drive the new ogre community away. He receives a gift from an old dear; a bewitched bottle of green mush, a giant antidote. Things are about to change for the people of Deva. With the temporary magical powers of the gooey substance, the solders is about to see the giants for who they really are.