Muscle Mouse is an episode from the third season of The Garfield Show.


Squeak's herculean friend Biff visits Garfield's house and turns it into a mouse gym. Meanwhile, Squeak, who is accidentally inside Jon's suitcase, tries to return home.


Harry, Lucky, and Myron check out the fish outside a pet shop. Lucky tells the other two that he is craving a mouse. Harry remarks that he hasn't eaten any mice in a long time, while Myron notes that he has never eaten mice in his life. As they walk away from the pet shop, Myron asks why Garfield does not eat mice. He is told that Garfield has befriended the mice, as well as being put off by their taste.

At the Arbuckle house, the mice are enjoying their time in the living room, as Garfield gives them pieces of cheese. Squeak then tells his friends to save a piece of cheese for his old classmate Biff, who will be visiting the house. The mice hide when Jon approaches the living room. Jon informs Garfield that he'll be out of town for a week. Jon gets a snack bag for the trip, unaware that Squeak is in said bag, and put it in his suitcase. As the rest of the mice come out of hiding, Biff comes in and inquires about Squeak. Garfield gets most of the mice to hide again when Jon come back into the room. Since Biff is unwilling to hide, Garfield sits on him as Jon returns.

Before leaving, Jon tells Garfield that he expects the house to be kept mouse-free. After Jon leaves, Biff, still under the fat cat, throws Garfield off, and the rest of the mice come out. Disappointed with the other mice being out of shape, Biff makes them exercise. Garfield tells Odie to search the house to find Squeak. After an airplane trip, Squeak finally gets out of the suitcase while Jon stops at a hotel in another part of the world. A mouse tells him that they are in Mexico, prompting Squeak to return home. At a post office, Squeak writes Jon's address on a postage box and gets delivered in the box.

A week later, the living room of Jon's house is filled with mice lifting cheese barbells, doing jumping jacks, pushups, or running laps. Garfield tells Odie that Squeak is still missing, and Jon will soon be returning home. Garfield tries to get Biff to leave, but Biff has no interest in doing so until Squeak returns.

From outside, Harry, Lucky, and Myron notice that the inside of Garfield's house is full of mice. Myron, curious about how mice taste, goes inside first through the kitchen doggie door. He captures two mice, Irv and Emily, and tosses them to Harry and Lucky, as the two mice scream for help. Biff notices the three cats and thinks that one of them ate Squeak. He then proceeds to rough them up, freeing Irv and Emily during the mayhem.

Meanwhile, Garfield finds Herman Post at the door with the box containing Squeak. After Herman leaves (due to hearing loud noises from inside the house), Garfield opens the box and finds Squeak. After Biff throws out the other cats, he is relieved to see Squeak alive and well. Jon then returns home, satisfied to see the house without any mice. After Jon leaves, Biff suggests Garfield should exercise. Garfield does so until he slips on a cheese barbell.

Major Characters

Minor Characters


  • When leg-locked by Biff, Myron speaks in Harry's voice.


Biff the Mouse The Garfield Show Cartoon Network

Biff the Mouse The Garfield Show Cartoon Network

The Garfield Show

Season 1: "Pasta Wars" "Mother Garfield" "Orange and Black" "Freaky Monday" "Bone Diggers" "The Robot" "Catnap" "Agent X" "A Game of Cat and Mouse" "Perfect Pizza" "King Nermal" "Desperately Seeking Pooky" "High Scale" "Jon's Night Out" "Not So Sweet Sound of Music" "Turkey Trouble" "Pup in the Pound" "Odie in Love" "Pet Matchers" "Lucky Charm" "Curse of the Were-Dog" "Meet the Parents" "Down on the Farm" "The Pet Show" "Curse of the Cat People" "Glenda and Odessa" "Underwater World" "Family Picture" "Time Twist" "Time Master" "Fish to Fry" "Little Yellow Riding Hood" "Fame Fatale" "Virtualodeon" "It's a Cat's World" "Mailman Blues" "Extreme Housebreaking" "Heir Apparent" "Caroling Capers" "From the Oven" "Neighbor Nathan" "History of Dog" "Up a Tree" "It's a Cheese World" "Nice to Nermal" "Out on a Limb" "Super Me" "Mastermind" "The Amazing Flying Dog" "The Last Word" "Iceman" "T3000"

Season 2: "Home for the Holidays" (Part 1, Part 2), "Ticket to Riches" "Gravity of the Situation" "The Art of Being Uncute" "Night of the Bunny Slippers" "Blasteroid" "The Big Sneeze" "The Spy Who Fed Me" "Meet Max Mouse" "The Haunted House" "Which Witch" "Cyber Mailman" "Odie for Sale" "Farm Fresh Feline" "Dog Days" "Planet of Poultry" "With Four You Get Pizza" "The Bluebird of Happiness" "Inside Eddie Gourmand" "Fido Food Feline" "Everything's Relative" "Honey, I Shrunk the Pets" "Garfield Astray" "History of Cats" "Black Cat Blues" "Cuter Than Cute" "Great Pizza Race" "Master Chef" "Guest from Beyond" "Depths of a Salesman" "Night of the Apparatuses" "Land of Hold" "Penny Henny" "A Gripping Tale" "Wicked Wishes" "Jumbo Shrimpy" "Pirate Gold" "Me, Garfield and I" "Detective Odie" "Stealing Home" "Full of Beans" "Love and Lasagna" "True Colors" "Mind Over Mouse" "The Big Sleep" "Pampered Pussycat" "Parrot Blues" "Rain or Shine" "The Mole Express" "Unfair Weather" (Part 1, Part 2)

Season 3: "Furry Tales" (Part 1, Part 2, Part 3, Part 4) "Kind to Kittens" "Little Angel" "Prehistoric Pup" "Land of Later" "Laugh in a Can" "The Non-Garfield Show" "The Caped Avenger Rides Again!" "The Superhero Apprentice" "Teddy Dearest" "Bath Day" "What a Difference a Pet Makes" "Garfield Gets Canned" "Partners in Mime" "Boris the Snowman" "Long Lost Lyman" (Part 1, Part 2, Part 3, Part 4), "The Golden Lasagna Awards" "Pawparazzi" "It's About Time" "Online Arbuckle" "Muscle Mouse" "The Write Stuff" "Cupid Cat" "The Control Freak" "Every Witch Way" "Revenge of the Cat People" "The Garfield-Only Show" "Filthy Fugitives" "Smartest Dog in the World" "Farmer Garfield" "More Than Meets the Eye" "Fast Friends" "Where's Odie" "Doggone Jon" "The Mysterious Machine" "Fitness Crazed" "Little Trouble in Big China" (Part 1, Part 2, Part 3, Part 4) "My Friend, Nermal" "Take a Ferret to Lunch" "Bride and Broom" "Problems, Problems, Problems" "Two Times the Trouble" "The Great Trade-Off"

Season 4: "Lion Queen" (Part 1, Part 2, Part 3, Part 4, Part 5) "Bewitched" (Part 1, Part 2, Part 3, Part 4, Part 5) "The Mean Machine" (Part 1, Part 2, Part 3, Part 4, Part 5) "Glitter Gulch" (Part 1, Part 2, Part 3, Part 4, Part 5) "Against All Tides" (Part 1, Part 2, Part 3, Part 4, Part 5) "Lasagna Tree" (Part 1, Part 2, Part 3, Part 4, Part 5) "Into the Wild" (Part 1, Part 2, Part 3, Part 4, Part 5) "Double Vision" "My Cousin Petunia" "Barking Mad" "Garfception" "For Mice" "The Six-Can Solution" "Silence of the Sheep" "Bulldog of Doom" "Mother Owl" "Home Sweet Home" "Whatever Happened to Aunt Ivy?" "Delicious Donut Day" "Little Miss Mouse" "Stink, Stank, Skunk!" "Jon 2" "My Dog, the Cat" "World Without Me" "Fraidy Cat" "Very Very Long Night"

Season 5: "Rodent Rebellion" (Part 1, Part 2, Part 3, Part 4)

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