(中文故事)
一段時間後，他們決定再次出發探險，尋找更多的火腿。但在途中，太空船又沒油了，所以鼠太郎們被迫降落。這次，他們降落在台灣。
某天，福太郎和夥伴們來到超市的冰櫃前，看到了好多不同的火腿，於是他們興高采烈地討論要偷走哪種火腿。當他們決定走進超市時，他們遇到了台灣的老鼠。
看到台灣老鼠的同時，福太郎嚇了一大跳，因為他們都很強壯，身上還有六塊腹肌！鼠太郎們的目光完全被那些老鼠給吸引住了，完全忘記自己是要來偷火腿的。
福太郎望著自己的肚子，喃喃說道：｢呃......我也好想變得跟他們一樣！」
此時，福太郎的夥伴滿太郎鼓起勇氣向台灣老鼠問道：｢要怎麼樣才能變得跟你們一樣強壯呢？」
老鼠們看了看他，露出驕傲的表情：｢別做白日夢了！你們不可能變得像我們一樣！」
滿太郎繼續請求台灣老鼠：｢拜託你告訴我啦！」
台灣老鼠的老大之漢被滿太郎的誠意打動了，一邊從口袋掏出一張廣告單一邊說到：｢如果你們現在加入Mouse Gym，不僅可以得到早鳥優惠，還能練出六塊腹肌喔！」
經過了一天的思考，鼠太郎們決定報團參加。他們一起穿著運動服，出現在Mouse Gym的櫃台。
｢我們想要報名！」福太郎堅定的說道：｢請幫我們設計課程！我們準備好接受訓練了！」
之漢走了出來，說：｢沒想到你們竟然真的出現了......好吧，我就特別為你們開班授課，請做好心理準備來接受我的魔鬼訓練。」
於是，鼠太郎們每天到Mouse Gym報到，直到太陽下山才離開。為了早日練出腹肌，他們放棄了原本愛吃的火腿，開始天天吃健康的雞胸肉。但因為過程太痛苦了，許多福太郎的夥伴紛紛放棄健身，最後只剩下福太郎孤軍奮戰。
一個月過後，福太郎照著Mouse Gym的鏡子，發現期盼已久的六塊腹肌出現了！他興高采烈的找之漢炫耀，卻看到之漢的衣服底下藏著完美的八塊腹肌！
深受打擊的福太郎默默走回超市，尋找那熟悉的火腿冰櫃，開始大吃特吃。
｢啊，這才是幸福的味道！」牠滿足地說道。
雖然，福太郎的減肥計畫宣告失敗反而還變胖。但是，鼠太郎和牠的夥伴們從此過著幸福快樂的日子，並再次踏上尋找火腿的旅程。
(English Text)
After a few months, the mousters decided to go on a new adventure seeking more hams. On their way the spaceship was running out of fuel again, so they were forced to land in Taiwan this time.
One day, Frank and his mouster buddies went to the supermarket and stood in front of the refrigerator. They saw many different kinds of hams. They felt cheerful and started to discuss what to steal. While in the supermarket they ran into the taimouses, which were a kind of mouse only living in Taiwan.
Frank was shocked when he saw the taimouses because they all looked so strong and had six-pack abs! The mousters’ attention was taken by those taimouses, and they totally forgot that they were there for hams.
Frank looked at his potbelly and murmured, “Uhhhh, I want to be like them!”
At this moment Chubby, one of Frank’s buddies, mustered up his courage to ask the taimouses, “What should I do to become as strong as you guys?”
The taimouses looked at him, turned their noses up and said, “Stop daydreaming! You will never be like us!”
“Please tell me!” Chubby looked at the taimouses with his “adorable beady mouse eyes”.
Melted by Chubby’s mouse eyes, Han, the leader of taimouses, took out a flyer from his pocket and said, “If you join the Mouse Gym now, you can not only get an early bird discount but also have a chance to build six-pack abs!”
After thinking for a day, all the mousters decided to join the Mouse Gym. They were decked out in sportswear and showed up at the counter of the Mouse Gym.
“We want to sign up for classes,” said Frank in a determined voice. “Please design classes for us! We are ready for training!”
Han saw the mousters and said, “Never thought you would show up. Okay. I will open classes just for you. Be ready for the intensive courses.”
The mousters went to the Mouse Gym every day and stayed until sunset. In order to have chiseled abs quicker, they gave up their favorite ham and started to eat healthy chicken breast. But the strict diet was too painful, one after another the mousters gave up, except for Frank.
After a month, Frank was looking at himself in the mirror at the Mouse Gym. He found the six-pack abs that he had been longing for appeared on his stomach. He went to Han delightfully to show him the result, but then he saw the amazing eight-pack abs under Han’s clothes.
Frustrated Frank went back to the supermarket looking for that refrigerator full of hams, and he started to gobble up all the hams.
“Ahhhh, this is what I call happiness!” He said satisfyingly.
Frank didn’t lose any weight but gained some. However, he lived happily ever after with other mousters and went on another trip to look for delicious hams.