In the second in the "What the heck will Elroy do next" adventure series, Elroy's dog Blue has been kidnapped by a criminal gang. They've also stolen his school science project, the Canine Revitalizer. If his friend Sydney and he don't find it and hand it in, they'll get sent to Summer school.

Elroy and his friend Syd have just put together a machine called the Canine Revitalizer for their science project when they discover their machine and Elroy's dog Blue are missing. The dog and the revitalizer were stolen by an underground crime club. The whole point of the game is then to find Elroy's dog and get the machine back before the end of the day.