The Amigonauts and Donnie compete for the ultimate title of Condiment Commander, but when Donnie realises he can't beat the Amigonauts, he turns them against each other instead.

A school assignment goes wrong in true Amigonauts fashion. The result? A parasite that creates a people-eating killer butterfly out of Donnie!

Donnie can't risk losing his status of being the bravest kid in school to the Amigonauts so he hatches a master plan to scare them!