《火星时代》第二季震撼回归，真实的纪录片加上虚构的剧情，史诗般的规模，并由奥斯卡奖获奖制片人罗恩霍华德和布莱恩再次掌舵，故事将从宇航员离开地球，前往火星定居的9年后说起。自从登陆火星以来，六位最初的宇航员已经把奥林匹斯镇发展成一个成熟的殖民地。但就在这时，原本由多个政府资助的宇航局IMSF已无力为火星探索计划提供全部资金，于是机会向私营领域开放。鲁克鲁姆是一家以盈利为目的的公司，一旦这家公司的矿工到达火星，这个航天任务以及火星的未来将被永远改变。于是，科学与私利之间有趣较量开始了。

　　In the exciting fourth season, we fast-forward six years, discovering that Nikki (Esther Smith) and Jason (Rafe Spall) are experienced adopters having built a lovely little nuclear family, enriched by an extraordinary support network. However, as their teenage daughter, Princess (Scarlett Rayner), starts to yearn for a connection with her birth mother, Nikki and Jason find themselves confronted with the ultimate test of their parenting skills.

幸福是什么？Linus说，幸福是那条哪怕破了、潮了，也依然美丽的蓝色毛毯； Lucy说，幸福是温柔的凝视着弹钢琴的男孩，哪怕他眼里只有贝多芬；Snoopy说，幸福是躺在红色小木屋上，睡到自然醒。 　　Linus的幸福之源——毛毯总是和Linus如影随形。Linus有多喜欢这条毛毯，其他伙伴就有多希望这条毛毯消失。于是Linus的姐姐Lucy骗他说，如果不改掉这个毛病，不久要来的奶奶就会亲自处理他。这句话让Linus听的瑟瑟发抖。于是在小伙伴的帮忙或捣乱的情况下，Linus开始了这场遗忘毛毯之旅。但分别总是令人格外痛苦，伤心的Linus只想告诉大家：我只是需要我的毛毯，这有错吗。

这一季对应原著小说第九部和第十部，主人公乌特雷德将夺回祖传领地——贝班堡。

　　A stolen computer disk contains the location of a hidden tresaure trove. It's up to the sexy ladies of LETHAL (Legion to Ensure Total Harmony and Law) to find the treasure before the bad guys do. Will the forces of evil be able to overcome LETHAL's powerful combination of bullets, brains, and boobs?