Martha tries her paw at sleuthing to find out who ruined the birthday cake at Alice's birthday party and she later tries to prevent a jewelry store robbery.

The President and his family is looking for a dog to live with them in the White House. When the President learns that Martha can speak, he wants to see her immediately for a top-secret job.

"When Martha, Helen, T.D., Alice, Truman, and Skits pitch a tent in Helen's back yard for the night, they expect to have a super-fun sleepover. But it doesn't take long for the s'mores (hold the chocolate, extra marshmallow) and the hand shadow puppet ideas to run out. What's this bored group of kids to do on a dark, quiet, summer night? Tell creepy campfire stories, of course!"--

The kids learn empathy and what it is like to be a dog when T.D. volunteers to act like a canine for the day and Carolina wakes up to find herself changed into a dog.