"Tensai Bakabon" is a comedic anime series centered on the Bakabon family, whose eccentric and absurd antics form the core of the narrative. The family is led by Papa Bakabon, a man whose bizarre logic and unconventional behavior often defy common sense, creating a series of humorous and surreal situations. His son, Bakabon, is a cheerful and naive child who frequently gets caught up in his father's schemes, while Mama Bakabon serves as the more grounded and practical figure, often exasperated by the chaos around her. The family is rounded out by Heedee, a mysterious and silent baby whose enigmatic presence adds to the show's quirky charm.

The series is episodic, with each episode presenting self-contained stories that highlight the family's interactions with their equally peculiar neighbors and the world at large. The humor derives from the absurdity of the characters' actions and the unpredictable nature of the situations they find themselves in. Papa Bakabon's nonsensical reasoning often leads to unexpected outcomes, while Bakabon's innocence and curiosity frequently result in comedic misunderstandings. The show also features recurring side characters, such as Rerere no Ojisan, a neighbor whose obsessive and repetitive behavior provides additional comedic fodder.

Themes of family, individuality, and the absurdity of everyday life are explored through the lens of the Bakabon family's antics. The series does not follow a continuous plot but instead relies on its characters' personalities and the absurdity of their interactions to drive the humor. The tone is lighthearted and whimsical, with a focus on slapstick comedy and surreal scenarios that often defy logic. Despite its comedic nature, the series occasionally touches on moments of warmth and familial connection, grounding the absurdity in relatable human experiences.