The big dog gets his head stuck in a hole in the fence.

The dogs hunt for a buffet.

The dogs meet a mechanical dog.

A speedy racer wants Secret Squirrel's car.

The dogs' quest for a quarter leads them through a quagmire of high finance.

We meet the villainous Scirocco Mole and learn how Secret and Morocco Mole met.

The dogs stumble upon a family barbecue where they are quickly adopted as pets.

Dr. O cuts off the sun's rays.

Panic strikes when a small cat comes between the dogs.

The dogs find themselves waiting in line at the post office. But they soon realize that they didn't know what the post office was even for. So the dogs spend the day waiting in line, signing up for the draft, and attacking mail carriers.

The dogs happen upon a huge bone that's being shipped to a museum.  When the bone is taken inside, the two dogs decide to wait for it to come back out.  But they wait so still, the movers think they're some exhibit and take them into the museum, too.  Once inside, the dogs decide to wait no longer and decide to 'go inside' after the bone.