It revolves around Numbuh 2, saving his friends from the DCFDTL that tied them on a dangerous roller coaster. Advertisement Operation: R.A.I.L. (Rapid And Infinite Labyrinth) is a KND game on ...
the former operatives are temporarily brought out of their decommissioned haze to discuss what happened during their very last mission with Numbuh one - where he disappeared and was never heard ...
Meanwhile numbuh one finds out his loser dad was the great numbuh zero.