Match Made in Heaven

After getting banished from Heaven, Cletus disappeared one day and Collin and Keenie went off to search for him. Instead, the remaining members of C.H.E.R.U.B meet two human students, 'different' but destined by fate to be together. With their help to find Cletus and get C.H.E.R.U.B back to Heaven, by good deeds and foil a terroristic black market, can they succeed? (Post HB EP4)