KAOS steals a water evaporation formula (DRY-UP) and blackmails the country by threatening to dry up all its water.

KAOS attempts to kill the Chief in his hospital room, but a sharp-eyed 99 foils the plot. Investigating a clue at Three Brothers Omniwash, Max and 99 discover TBO means T.B.Orlando, a Hollywood executive. Or does it? When Orlando turns up dead, Max and 99 must find the truth before KAOS dries up the Mississippi River.