故事讲述突如其来的未知生命体“Gadoll”，使人类长年陷入灭亡的危机，生存下来的人们为了保护自己，建造了高度3,000M 的巨大移动要塞“DECA-DENCE”。 DECA-DENCE的居民分为日夜与 Gadoll 战斗的战士“Gear”，以及没有战斗能力的“Tanker”。憧憬并梦想成为战士的少女・夏目，冷淡的装甲修理人・镝木，不放弃希望、努力向前的少女与舍弃梦想的现实主义男人，看似极端相反的两人，因他们的相遇而让世界的未来有了巨大改变。
秦牧天生凡体，历经考验成为天魔教教主，被延康国封为第一任太学博士。延康国叛乱之战中秦牧引来魔神，掀起浩荡风云，后随武可汗入楼兰黄金宫，一个人打遍圣宫无敌手。他返回延康,助国师平叛、造射日神炮，后得人皇传承成为新一代人皇。机缘巧合下秦牧得知自己的身世,借助道门小玉京等人帮助，开启道法神通改革的大世。
在那遥远的唐朝，有一个小村庄，村里住着以王兄、李兄为首的一群文人朋友——诗情画意的水墨风田园故事，历史人物趣味新说，带你走近和课本上不一样的不靠谱王李二人。（共31话：序章+正片13话+番外12话 ）
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.
