Mrs. Lowe (Ann Margret) is the widow who enlists the help of Lane (John Wayne) in finding a gold shipment that had been stolen five years ago
In that time ten men rode away with half a million in gold
The fellow that was running the show figured they better hide it until things cooled off
So he took the Fargo box and rode south into Mexico
He had the misfortune of getting shot
But before he died, he told his wifethe mother of his little boy where the gold was
But his widow decided to get the gold, return it to the train company for a $50,000 reward, and clear her husband's name
The reason: she doesn't want her kid growing up thinking his old man ran around robbing trains
In mid way, and as 'gold has a way of bringing out the larceny in all of us,' Wayne, with his old-times pals and two young helpers, find themselves followed by mysterious riders who also want the buried loot
"The Train Robbers" features plenty of gorgeous vistas, from rocky scrub to a sea of rippling sand dunes
Also Wayne delivers one of his most memorable lines addressing Margret, 'I've got a saddle that's older than you are, Mrs. Lowe.'