Board Thread:General Discussion/@comment-4984687-20140616023622/@comment-25680988-20141114204341

Yes they have had a conflict with anyas clan. ***SPOILERS***

In season 2 the mountain men take anyas clan and try and drain their blood to transfusse it with their own to prevent radiation problems and let them go out side. The grounder that through the spear was part of anyas clan, they were just protecting their land.