The Octopod is grabbed by a colossal squid. The Octonauts are unable to break free due to the hooks on the ends of the squid's tentacles. Fortunately the arrival of some sperm whales turns the squid from hunter to hunted.
小冒险家表哥和表弟在调查蓝星三大本源能量“逆卡能量体”时，表哥不幸被能量反噬。为了救出表兄，揭开背后真相，表弟与神秘的那玛组成了搭档，一同向着危机四伏的深渊地带进发。一路上，表弟和那玛凭借着超高的智慧，想出一个个巧妙的办法，又鼓足非凡的勇气，和那些异兽展开激烈搏斗。最终，他们成功战胜了所有困难，完成了这场惊心动魄的战斗。
