Although Joe's pet dinosaur Betsy is too big for some activities, a formidable task allows her to demonstrate that sometimes bigger is better.

Dr. Clock invents a time machine, but his trip back to the era of the dinosaurs does not turn out as he had expected.

In three brief mysteries, Detective Dinosaur learns about doing undercover work, gets chased by strange blobs, and finds rain on a sunny day.

In Wyoming in the 1880s, a young boy fulfills his dream of finding a dinosaur skeleton on his father's ranch, outwits a man who would cheat him, and sells his find to a team of fossil hunters.