Gary, the President of the Midnight Society from the original episodes is back and needs the help of his brother Tucker and his friends to help track down the members of the FIRST Midnight Society from way back in 1937 and help solve an ancient mystery and prevent an evil force from being unleashed on the world. Part one focuses on Tucker and Gary's search for 'The General' and his clue to the puzzle.

The Midnight Society split up and go in search of the original members who each hold a clue to the mystery. Part two focuses on Quinn's search for 'The Homecoming Queen' and Megan's search for 'The Tycoon'.