Plot: Matt Denning (Robert Lansing), a good friend of Emmett Ryker's, believes his younger brother Will (Andrew Prine) innocent of a crime and breaks him out of a military jail where he is awaiting execution, accidentally killing a guard in the process. Along with Matt's wife (Jan Shepard) and son (Kurt Russell), they escape into an area where many Sioux Indians are out for blood, and are trailed by Ryker, army Sgt