Brad Scrimp is the greedy nephew of Mr. Scrimp who works with the villains, Mr. Scrimp, Blake Midwinter, Nasal, Olive, Cuthbert, Teacher, Headmaster, Janitor, Winston, Slasher Brown, Slasher Brown's Henchmen, Posh Penny, Godfrey, Soldiers, Mr. School Inspector, Captain Prefab, Katzenberger, Mr. Dust, Sgt. Slipper, Hugo Trenchfoot, Vilhemina Slop Bucket, Mrs. Creecher, Fatty Fudge, Fatty Fudge's Son, Reg Trademark, Captain Trout, Aunty Fanny, Aunty Gertrude, Sard, Mrs. Duffel, Mrs. Greature, Sir Fitz-Patrick Flush, McInk, Mr. Har Har, Dr. Paeleo, Monsieur Torte-Visage, Robers and Cruncher Kerr.
In the annual Mr. Scrimp tricks Dennis into giving him Gnasher as a present for his nephew.
Brad is delighted to have Gnasher, but Gnasher is bored without Dennis. Brad tries to make Gnasher smile by showing him some lovely items, such as a gravy filled jacuzzi with hot and cold running sausages. Brad grows angry when Gnasher still doesn't smile so he tries to tickle him. Gnasher still doesn't laugh, which causes Brad to throw a tantrum. Gnasher turns on Brad, and attacks him so badly that he cannot take it anymore.
Dennis shows up, and Brad begs for mercy. He lets Dennis and Gnasher play in the amusement park that's been set up in the Scrimps' garden.