The members of the Clue Finders team -- including Owen, Leslie, Santiago, and Joni, along with their timid yet trusty talking laptop computer, LapTrap -- receive a distress signal from a remote mansion that was apparently sent by Joni's uncle. The gang cautiously investigates the signal only to learn that the mansion is an elaborate sequence of traps devised by a collaboration of their nemeses from previous games in the Clue Finders franchise. There are 4 unique traps, each designed by one of the 4 villains, one designed for each of the 4 children.