Garfield gets rich after a Leprechaun gives him some good luck.

Odie becomes a monster-dog in the middle of the night and eats a lasagna that was for for Jon and Liz. Jon thinks that Garfield is responsible, and blames him.

Garfield and Odie get taken to another land through a magic mirror where Neferkitty (voiced by Susan Silo) and her Egyptian colony of cats live, planning their revenge on humans.

Garfield and Odie are mistakenly accused of stealing barbecued ribs (really stolen by neighborhood pets) when they run away from Jon's twin girl cousins.

Garfield is enrolled on the Dr. Whipple's Pet obedience course after Jon secretly tapes him misbehaving, but Garfield eventually discovers the doctor as a sham artist fraudulently using his course to launder money for himself; the doctor is then ruined when Garfield sneaks a microphone backstage as the Doctor says the public is stupid.

Jon is watching a cooking show to make Odie's birthday cake when Jon accidently switched the channel, leaving Jon to mistake the directions from the horror movie as being from the cooking show. It becomes a Frankenstein-like monster cake.