When someone has plans, especially secret or dishonest ones, they are schemings.
Schemings are usually thought of as bad or sneaky.
Examples:
Her schemings to take over the company were discovered.
I don't trust his schemings.
The cat's schemings to catch the mouse were unsuccessful.
The dog's schemings to steal the food were foiled.
His schemings to cheat in the game were very obvious.
The villain's schemings were finally stopped by the hero.