noun.
A plot made in opposition to another; a counterploy.
verb.
To form a plot or plan in opposition to the actions of another.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
verb.
make a plot in response to another plot
noun.
a plot intended to subvert another plot
Word Usage
"And as I watch yet another hour of portentous posturing, as Anna blabs on about "the magnitude of what is coming" while the rebels of the Fifth Column counterplot against them, I can't help also wonder what in the world the V's are waiting for."