I honestly have the other parts of the comics, but ykw I might change the story anyway
Gaz and Dib are "colleague", working under the Membrane company founded by their scientist mentor. However, although Dib trying as hard as he can to proof himself what he's capable of instead just become a scientist, Membrane remain disapproval and ask Gaz to retrieve Dib back from his "mission".
Inspired by a conversation with Skeleion about Zim's zipper teeth, and how this joke is long overdue to make about them XD I wish this had been done in the series some time.