"Thresher" reloaded and turned upon her pursuers, loosing a spread of torpedoes which barely missed. She evaded her hunters and shifted to waters off Manchuria. The boat sighted only fishing craft until 26 August, when a large cargo vessel hove into sight at 09:44. "Thresher" surfaced at 13:15 and headed for the nearest point on the enemy's zigzag course. An hour later, the submarine spotted a floatplane on patrol, and hurriedly dived. As she went deep, one depth charge exploded nearby.