So, at the end of season 2 of SCMI, a professor said that he enrolled them in a college course, and the kids said that they would go, whilst solving any mysteries along the way. You could say that this is just all of their other mysteries from past series, but at the beginning it shows most of those monsters in a museum, therefore they have already been caught. It would be a good and fun idea to have them solve mysteries outside of the first 2 seasons, whilst still figuring each other out.