One of my favorite episodes has drawn me a blank

Can anyone tell me the episode name of the one that Hawkeye and Margaret were either driving to and aide station or coming back and they were being attacked so they had to go to an abandonded hut and found a little bit more than freindship, lol. This episode always makes me laugh when Margaret keeps calling him honey and sweetie, its nto a commonly side shown of her. haha. Thanks!