The phrase "daring rescue" means a courageous and bold act of saving someone from danger or a difficult situation. It implies that the rescue involved bravery and taking risks. Full definition
The film depicts the most daring rescue mission ever attempted. (firstshowing.net)
An act of terrorism leads to one of the most daring rescue missions ever attempted. (uphe.com)
Poe Dameron's daring rescue of Admiral Ackbar from a First Order Star Destroyer further establishes the pilot as a hero of the Resistance. (kotaku.com)