The plans we hear nothing about fail spectacularly.
The author spends half a chapter on the details of what the plan will involve, but only a paragraph on the successful execution of it.
Subverted: Alice starts explaining her plan to Bob before the commercial break, when we come back it's being carried out, only for it to go wrong halfway through.
Double Subverted: But it turns out that failure was part of Alice's plan all along as it lures the villain into a false sense of security.
There are unexpected complications which cause parts of the plan to fail and make improvisation necessary, but in the end everything works out mostly as explained beforehand.
Alice tells Bob (and, by extension, the audience) her plan, and it seems to go smoothly...until General Evulz reveals that he heard their plan and set up a trap to catch them. Then Alice reveals that she knew Evulz was listening and the plan she just explained to Bob was a distraction; she kept her real plan secret, and it works perfectly.
We hear all the details of what the plan will involve, and see all details of it playing out successfully.
No plans are made.
Enforced: The author doesn't want to spoil the audience by revealing what's going to happen before it happens.
Lampshaded: "If anyone else had known what you were up to, there's no way that plan would have worked."
Exploited: The Big Bad tricks Alice into saying the plan to an empty room, while the camera watches. Come the next day, when Alice tries executing the plan, only for it to fail.
Defied: The hero explains his plan to everybody, including the Big Bad, because he knows that the Big Bad can't do anything to stop it.
Discussed: "So you're telling me that you think your plan will fail if you tell me what I'm supposed to do before I actually need to do it?"
Conversed: "It would be nice to actually hear the heroes planning instead of having them do it during the ads all the time."