Comedian Pat Paulsen takes a spin in this episode as a memory expert and tenderfoot agent on his first field assignment.
But it's not an episode played for laughs. In fact, guest star Barry Atwater is one of the best villains they've had in a long time (though no one matches the incomparable Doctor Loveless). Atwater is cruel and shrewd as an opium smuggler working through his funeral parlor (though Paulsen looks like he'd make a good funeral director; these days people like Paulsen would prefer playing bad guys).
With a third member of the team (thanks to Ross Martin's faulty ticker, the second member being second-stringer Charles Aidman) there's no time for female companionship, so the typical lovely (either in distress or with something up her sleeve) never bows in. Paulsen is no replacement. Too bad they weren't forward-looking enough to make the memory expert a female.
Overall, Atwater makes this episode. The story is slight and so is Paulsen. His performance is execrable. Martin's loss is all but devastating. It's too bad Conrad and Atwater don't go head to head, but Jim sneaks around with Paulsen while Artie's replacement plays off Atwater, and pretty well, too, though he lacks that twinkle in his eye Artie always seems to have in disguise.
Overall, a pretty good episode (despite Paulsen) and it keeps moving, unlike so many episodes that start well but degenerate into lots of sluggish sitting around and talking.