After a U.S. deputy marshal apparently saves Adam's life by gunning down two men who shot at him, he eventually reveals that he in town to bring a close friend of the Cartwrights to San Francisco to testify in a statewide racketeering trial, but the Deputy Marshal's motives soon become suspect as to what he really want to do with the reluctant witness.
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Cast:
Pernell Roberts - Adam Cartwright
Dan Blocker - Eric 'Hoss' Cartwright
Michael Landon - Joseph 'Little Joe' Cartwright
Lorne Greene - Ben Cartwright
Dan Duryea - U.S. Dep. Marshall Gerald Eskith
