And he had to put his plan into action at some point.

You can put the first stage of your plan into action, and the second as well.

A second later he had put his plan into action.

She'd had a month to put her plan into action.

Now it was time to put the plan into action.

It was time for those words to be put into action!

She has the final word on whether they are put into action or not.

All she had to do now was to put her great plan into action.

With any other woman he would already have put his plan into action.

Then she came here to put an idea of her own into action.