the worm turns
One’s luck or fortune changes.
Looks like since this last week your business went up 200 percent profit. The worm turns for you my friend.
the worm will turn
From an ancient proverb, "the worm will turn when trodden upon" meaning the meekest among us will fight back when provoked. It can also mean a change in fortune.
The people of New Orleans built their city below sea level. Katrina proved that the worm will turn.