save the day/situation

save the day

To manage to produce a good result or make something successful when failure or misfortune seem imminent. Facing elimination from the playoffs, the team's star quarterback threw an incredible pass for a last-minute touchdown and saved the day. I thought we'd have to cancel the birthday party, but John saved the day by dressing up as a clown and entertaining Tommy and his friends.
See also: save
Farlex Dictionary of Idioms.

save the day

to produce a good result when a bad result was expected. The team was expected to lose, but Sally made three points and saved the day. Your excellent speech calmed the crowd and saved the day.
See also: save
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

save the day

Prevent a misfortune, as in They had forgotten the knife to cut the wedding cake, but Elizabeth arrived with one and saved the day .
See also: save
The American Heritage® Dictionary of Idioms by Christine Ammer.

save the day

COMMON If someone or something saves the day in a situation which seems likely to fail, they manage to make it successful. Suddenly there were ten deer charging straight towards me, but the shooting practice drilled into me in the school training corps saved the day. After a disastrous first night for the show, it was Biggs who stepped in to save the day.
See also: save
Collins COBUILD Idioms Dictionary, 3rd ed.

save the day (or situation)

find or provide a solution to a difficulty or disaster.
1990 Richard Critchfield Among the British When the postwar social fabric started to tear, amid a stagnant economy and global decline…Edward Heath…was supposed to save the day. He failed to deliver.
See also: save
Farlex Partner Idioms Dictionary

save the ˈday/situˈation

do something that changes probable failure into success: Jones saved the day for England with a last-minute goal.
See also: save, situation
Farlex Partner Idioms Dictionary
See also:
  • save the day
  • play with fire
  • play with fire, to
  • Lord giveth and the Lord taketh away, the
  • be playing with fire
  • have a charmed existence
  • lead a charmed existence
  • lead a charmed life
  • live a charmed existence
  • live a charmed life