Long before reuniting in the city of Harley, Mika and Cujo were inseparable draking partners. After an incident drove a wedge between them, however, they bitterly parted ways, never expecting to see the other again... let alone work together! After a long night of reminiscing, Cujo enlists Mika to help him take down a dragon--none other than the famous Ol' Harpoon that Cujo failed to finish off three years ago. And so, the old duo take to the skies for one last catch!