Roswell is overrun with conventioneers all wanting a piece of the supposed alien action. Even Max is roped in to dress as an alien - complete with buggy eyes and big hands. Of course nobody is aware that there are actual aliens anywhere near.
It's a good episode that brings Valenti even more into the proceedings. It's a mix of comedy and adventure. Johnathan Frakes does a good job of taking the whatsit out of himself, and the whole episode reeks of that slightly unworldly, bizarre concept that is any convention. The introduction of Hubble is a little weird, but again it pushes the story along to a conclusion that is slightly unexpected. The use of Valenti's backstory with his father is cleverly done and the injustice of what happened to him explored. It also gives us a good intro to Nasedo and what he might be about.