while captain bentine scouts the surrounding hills. >> custer sends bentine off, in part because if there'se's not going to get any of it. >> downfield, major reno and his men ride head long into the fight. unaware that nearly 500 battle-tested warriors lie in [ gunfire and screaming ] >> the first that realizes that they are in way over their head is marcus reno. i mean, he comes up on the village with his men, and they are just inundated, and so they fight and retreat, fight and retreat. >> pull back! >> isolated behind the ridge, custer has no idea reno's men are fighting for their lives. >> custer's not working in concert with others well. you need to coordinate your efforts. you need to know the terrain very well. and actually the home field of your enemy. that's why the scouting and intelligence is so critical. >> caught the indians napping. dispatch a message to captain bentine. >> yes, sir, general. >> tell him to come without delay. we found a large indian village. bring men and ammunition, quickly. >> sir! >> ride back and contact bentine. ride fast as you can. >> yes, sir! >> go!