Complex sentence: She, fearing for Number 6's life, goes into the jail, distracts the Kid, steals the keys then passes them to Number 6 who then escapes, only to be lassoed and brought back to town by the Judge's henchmen.
Split into simpler sentences: She, fearing for Number Six's life, goes into the jail, distracts the Kid, steals the keys, then passes them to Number Six. He escapes, only to be lassoed and brought back to town by the Judge's henchmen.