A dangerous tidal wave washes all the fish up in the trees, which is also a big problem for the poison dart frogs who don't have enough puddles up in the trees for the tadpoles. Luckily, Tweak's new Gup-H is ready to help.
《钢铁飞龙2》讲述的是曾经被奥特曼打败或驱逐出地球的外星人，再度入侵。有翅膀硬了回来找奥特曼寻仇的，有越狱报复地球的，还有来刷存在感的。而这些外星人都具备各式各样的能力，地球再度陷入危机。关键时刻，钢铁飞龙小战队挺身而出，与正在归来的奥特曼一起，为保护地球安危而战斗。
