In the season finale of Creature Commandos, titled "A Very Funny Monster," the story reaches a climactic conclusion in Pokolistan. The episode explores the complex backstory of Nina Mazursky, also known as The Mermaid, while wrapping up the overarching conflict involving Princess Ilana Rostovic. Task Force M, having been ordered to assassinate Princess Ilana due to a prophetic vision suggesting she would instigate World War III, embarks on their mission.

However, doubts arise when Rick Flag and Eric Frankenstein uncover evidence that questions the validity of this vision. As tensions mount, Nina is reluctantly pushed into the role of assassin, tasked with killing Ilana while she swims in a guarded lake.