Bonanza: While the Cartwrights are making camp for the night, a calvary captain suddenly appears being chased by indians. The captain rushes into the camp and the Cartwrights soon realize that they are surrounded and that they have no water. They soon find out from the captain that the leader of the indians is Cochise and after Adam is injured in an attempt to get water, Ben decides that he must barter with Cochise in order to save his son's life.