Really dumb episode. Rick and AJ study their past looking for the lost treasure of the Simons. But other people are also looking, so it's a race for the treasure.
Unfortunately, the episode is broken by really silly historical flashbacks about Simons of old who all just happen to look like . . . Rick and AJ. And their mother. And M. P. Brown! And their history is . . . Imprecise.
This sort of "dress up" episode is usually fun for actors. And the more fun actors have in episodes like this, the less fun, usually, the audience shares. The Trouble S&S had for the course of its run was striking the right balance.
I've long advocated for more silliness in S&S, but Rockford Files/Remington Steel silliness. The episode where Gregory Sierra ran a divorce business was a good example. S&S writers were lousy at striking the right balance.
And the treasure? Well, that would be a spoiler.