Her plan was a very simple one, and had never yet failed.

When all your plans have failed what else is there to do?

If our plans fail, one or both of us will probably be dead.

However, he made her too strong, and the plan ultimately failed.

Like all good plans, this plan failed soon after it began.

He'd have to go right back if the captain's plan failed.

As one plan had failed, he must hunt about for another.

He tells them they are starting late because his plan to get out of school early failed.

That plan only fails when you walk into the great house.

The overall plan failed to do justice to any of this.