S3·E20 Sweet Revenge

In which Wyatt Earp is beset by two perils, a man and a woman both determined to kill him. Both arrive in Dodge simultaneously. The man, an ex-convict, awaits his opportunity, which arrives when Wyatt, very interested in the girl, takes her picknicking. After Wyatt disposes of the girl and her gun the man attacks him - making Wyatt's innocent picnic one of the most eventful Sunday afternoons any Marshal ever spent.