"Just in case folks" always have a Plan B. In extremes Plan C. Plan D and on down the alphabet allowing for snafus, interruptions, etc.
They make a list and check it twice. (At least twice)
Not so with God. Quote scribbled in the front of my Bible---"GOD ONLY HAS PLAN A!".
Many are the plans in the mind of a man (or on their list), BUT it is the purpose of the LORD that will stand. (Proverbs 19:21, parenthetical insertions and emphasis are mine)
God only has ONE plan. His will. (Ephesians 1:11, 21)
His good and perfect plan. His Plan is the only plan. It's called sovereignty. (Psalm 115:3) It's a continuous working together for good for those who love God and are called according to His purpose. (Romans 8:28)
PLAN G = GOD"S PLAN. GOD'S PLAN NEVER CHANGES! (Jeremiah 29:11-13)
Mattie Dear said it well. "Be of good cheer. God is in the plan."
That would be Plan G.