Wiktionary
to the rescue
adv. (context Internet slang English) Used to express when someone or something has saved the day; being clutch, or having good timing.
Usage examples of "to the rescue".
We might as well let the Rebellion waste its resources rushing useless forces to the rescue.
Then, it seems, the busload of happy revellers arrived, so she drove the bus to the rescue, for which I'll always be grateful.
Two helicopters, two Falcon jets, a medium-range cutter, and a hundred air- and seamen have already been committed to the rescue.