Tom's new book on "how to catch a mouse" doesn't prove too helpful against Jerry; actually, Jerry seems to make better use of it than Tom.

Tom is a feline fisherman, Jerry is his live bait, and Spike is the bulldog guarding the lake.

A girl named Susie goes to an amusement park and are greeted by a couple of costumed tour guides, The Banana Splits who take her on a tour of the park. In another realm a witch sees Susie and wants to make her a witch so she lures her into her realm. The Splits follow her and discover a world of magic. They try to rescue Susie from the witch and are aided by a couple of bickering wizards, Hocus and Pocus.

The Scooby-Doo/Dynomutt Hour is a 60-minute package show produced by Hanna-Barbera Productions in 1976 for ABC Saturday mornings. It marked the first new installments of the cowardly canine since 1973, and contained the following segments: The Scooby-Doo Show and Dynomutt, Dog Wonder.