Rescue Operation is the 18th chapter of the Golden Kamuy manga.
Summary
Sugimoto continues fighting the twins but they are stopped by the other soldiers in the bas. Asirpa and Shiraishi formulate a plan to free Sugimoto. Shiraishi manages to get into the base but the twins enter the room and conspire to kill Sugimoto but he gets out of the bindings and fight on of the twins but ends up seriously injured.