在遥远的爱尔兰，聪颖纯真的少年修士布兰登（伊万·麦克奎尔 Evan McGuire 配音）生活在一座高墙围筑的修道院内。为了抵抗维京人的入侵，院墙不断加高，卡拉院长（布莱丹·格里森 Brendan Gleeson 配音）更严格禁止布兰登他们踏入外部世界。某天，一名留着长发、幽默风趣的修士来到修道院，他便是闻名遐迩的艾奥娜绘经师伊丹（米奇·拉里 Mick Lally 配音）。此前伊丹持续创作那部重要的宗教典籍《凯尔经》，然而异族的侵略使他不得不中断这项神圣的工作。为《凯尔经》所吸引的布兰登，决心帮助伊丹完成经典的绘制，为此他不惜挑战禁令走出修道院。外面的世界充满新奇和危险…… 本片荣获2009年昂西国际动画电影节观众奖最佳影片奖、2009年萨格勒布国际动画电影节特别提及。
In this season, the show went back to airing one new episode a week, but stayed in the hour-length format, filling up the second half-hour with episodes from previous seasons and some of the prime-time specials from the 1980s. This entire season, along with the second half of season 6, is available on Garfield and Friends: Volume 5 DVD set. Also worth noting is that here, a new theme song was added that was written by J.R. Johnston and Neil Panton. The theme was sung by J.R. Johnston. This theme song was not shown internationally, and as a result, it does not appear on the DVDs (although Garfield's quotations are kept intact). This new introduction sequence used most clips from Seasons 5-7 and a few from the first two seasons, as well as Garfield in Paradise and Garfield's Feline Fantasies. The episodes stopped using a few seconds of the theme playing in the episode title cards after season seven's fourth episode; music from the episodes were used in the title cards until the show ended, even though season six used music from some of their episodes.
