延续第一部的史诗故事，柯拉（索菲亚·波多拉SofiaBoutella饰）与幸存的战士准备好豁出一切，与勇敢的碧草星居民并肩作战，即使村落不复往日和平，仍是对抗母星失败的人们寻得的新家园，这一切，就靠他们来守护。最终大战前夕，这群战士必须面对各自的过往，也揭露他们究竟为何而战。当叛军势力星火燎原，王国大军倾巢而出准备平息动乱，战友情谊益发坚定，英雄崭露头角，不朽传奇也于焉诞生。
一直以来，假面骑士和超级战队守护着地球的和平，但这段历史即将被颠覆。 假面骑士Decade成为“大修卡”的大首领向超级战队发动进攻，豪快红亦成为“大残虐”的大帝王对决假面骑士。而在两个组织的干部口中，提及着神秘的“大机器计划”…… 为了搞清楚这场战争的来龙去脉，假面骑士Fourze和Go-Busters乘坐Den-Liner回到过去……
'In Vitro' is an otherworldly rumination on memory, history, place and identity. Set in Bethlehem decades after an ecological-disaster, the dying founder of a subterranean orchard is engaged in a dialogue with her young successor, who was born underground and has never seen the town she's destined to replant and repopulate. Inherited trauma, exile and collective memory are central themes.
