Counterplot

v. t.	1.	To oppose, as another plot, by plotting; to attempt to frustrate, as a stratagem, by stratagem. [imp. & p. p. Counterplotted; p. pr. & vb. n. Counterplotting.] Every wile had proved abortive, every plot had been counterplotted. - De Quinsey.
n.	1.	A plot or artifice opposed to another.

Noun	1.	counterplot - a plot intended to subvert another plot Synonyms: counterplan
Verb	1.	counterplot - make a plot in response to another plot

counterplan, plot