"Yatterman" is a comedic action-adventure anime that revolves around the exploits of the heroic duo, Gan-chan and Ai-chan, who operate as the Yatterman team. The series is set in a vibrant, futuristic world where the Yatterman team combats the mischievous and bumbling Dorombo Gang, a trio of thieves led by the cunning Doronjo, accompanied by her dim-witted henchmen, Boyacky and Tonzura. The Dorombo Gang seeks to collect the scattered pieces of the legendary Skull Stone, a powerful artifact that, when fully assembled, grants immense power. The Yatterman team, equipped with advanced gadgets and their signature mecha, the Yatter-Wan, consistently thwarts the gang's schemes, often leading to humorous and over-the-top confrontations.

The narrative is episodic, with each episode featuring the Dorombo Gang devising a new plan to steal a piece of the Skull Stone or cause general chaos, only to be foiled by the Yatterman team. The series balances slapstick comedy with moments of genuine tension, as the stakes occasionally escalate when the Dorombo Gang comes close to achieving their goals. The dynamic between the heroic Yatterman team and the comically inept villains is central to the story, with recurring gags and character quirks adding to the series' charm.

Gan-chan, the leader of the Yatterman team, is a brave and resourceful inventor, while Ai-chan, his partner, is skilled in combat and provides emotional support. Their teamwork and unwavering sense of justice drive the narrative forward. On the opposing side, Doronjo's cunning and occasional moments of vulnerability contrast with Boyacky and Tonzura's incompetence, creating a comedic yet endearing antagonist group. The series also features a colorful cast of supporting characters, including the Yatterman team's robotic dog, Yatter-Wan, and various allies and adversaries who appear throughout the story.

Themes of perseverance, friendship, and the triumph of good over evil are prevalent, though the series maintains a lighthearted tone, often poking fun at its own formulaic structure. The episodic nature allows for a mix of standalone adventures and occasional multi-episode arcs, particularly when the Dorombo Gang's plans grow more elaborate. "Yatterman" combines action, humor, and a touch of nostalgia, making it an engaging and entertaining series for fans of classic anime.